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ASTM A234 WPB concentric reducer
ASTM A234 WPB Concentric Reducers are used for connecting pipes of different diameters and find wide applications in various chemicals, construction industries, paper, cement & ship builders.
Please send your inquiry by sales@sunnysteel.com
Description
ASTM A234 WPB Concentric Reducers are used for connecting pipes of different diameters and find wide applications in various chemicals, construction industries, paper, cement & ship builders.
Chemical Composition (%) of ASTM A234/A234M
| Grade | Type | C | Si | S | P | Mn | Cr | Ni | Mo | Other | ób | ós | δ5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WPB | 0.3 | 0.1min | 0.058 | 0.05 | 0.29-1.06 | 0.4 | 0.4 | 0.15 | V:0.06;Nb:0.02 | 415-585 | 240 | 22 | 197 |
| WPC | 0.35 | 0.1min | 0.058 | 0.05 | 0.29-1.06 | 0.4 | 0.4 | 0.15 | V:0.06;Nb:0.02 | 485-655 | 275 | 22 | 197 |
| WP1 | 0.28 | 0.1-0.5 | 0.045 | 0.045 | 0.3-0.9 | 0.44-0.65 | 380-550 | 205 | 22 | 197 | |||
| WP12 CL1 | 0.05-0.2 | 0.6 | 0.045 | 0.045 | 0.3-0.8 | 0.8-1.25 | 0.44-0.65 | 415-585 | 220 | 22 | 197 | ||
| WP12 CL2 | 0.05-0.2 | 0.6 | 0.045 | 0.045 | 0.3-0.8 | 0.8-1.25 | 0.44-0.65 | 485-655 | 275 | 22 | 197 | ||
| WP11 CL1 | 0.05-0.15 | 0.5-1 | 0.03 | 0.03 | 0.3-0.6 | 1-1.5 | 0.44-0.65 | 415-585 | 205 | 22 | 197 | ||
| WP11 CL2 | 0.05-0.2 | 0.5-1 | 0.04 | 0.04 | 0.3-0.8 | 1-1.5 | 0.44-0.65 | 485-655 | 275 | 22 | 197 | ||
| WP11 CL3 | 0.05-0.2 | 0.5-1 | 0.04 | 0.04 | 0.3-0.8 | 1-1.5 | 0.44-0.65 | 520-690 | 310 | 22 | 197 | ||
| WP22 CL1 | 0.05-0.15 | 0.5 | 0.04 | 0.04 | 0.3-0.6 | 1.9-2.6 | 0.87-1.13 | 415-585 | 205 | 22 | 197 | ||
| WP22 CL3 | 0.05-0.15 | 0.5 | 0.04 | 0.04 | 0.3-0.6 | 1.9-2.6 | 0.87-1.13 | 520-690 | 310 | 22 | 197 | ||
| WP5 CL1 | 0.15 | 0.5 | 0.03 | 0.04 | 0.3-0.6 | 4-6 | 0.44-0.65 | 415-585 | 205 | 22 | 217 | ||
| WP5 CL3 | 0.15 | 0.5 | 0.03 | 0.04 | 0.3-0.6 | 4-6 | 0.44-0.65 | 520-690 | 310 | 22 | 217 | ||
| WP9 CL1 | 0.15 | 1 | 0.03 | 0.03 | 0.3-0.6 | 8-10 | 0.9-1.1 | 415-585 | 205 | 22 | 217 | ||
| WP9 CL3 | 0.15 | 1 | 0.03 | 0.03 | 0.3-0.6 | 8-10 | 0.9-1.1 | 520-690 | 310 | 22 | 217 | ||
| WPR | 0.2 | 0.05 | 0.045 | 0.4-1.06 | 1.6-2.24 | 435-605 | 315 | 22/28 | 217 | ||||
| WP91 | 0.08-0.12 | 0.2-0.5 | 0.01 | 0.02 | 0.3-0.6 | 8-9.5 | 0.4 | 0.85-1.05 | See sdandard | 585-760 | 415 | 20 | 248 |
| WP911 | 0.09-0.13 | 0.1-0.5 | 0.01 | 0.02 | 0.3-0.6 | 8.5-10.5 | 0.4 | 0.9-1.1 | See sdandard | 620-840 | 440 | 20 | 248 |
For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.
The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
The sum of Cr and Mo shall not exceed 0.32%.
The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
Mechanical properties of ASTM A234
| Tensile Requirements | WPB | WPC, WP11CL2 | WP11CL1 | WP11CL3 |
|---|---|---|---|---|
| Tensile Strength, min, ksi[MPa] (0.2% offset or 0.5% extension-under-load) | 60-85 [415-585] | 70-95 [485-655] | 60-85 [415-585] | 75-100 [520-690] |
| Yield Strength, min, ksi[MPa] | 32 [240] | 40 [275] | 30 [205] | 45 [310] |
Eccentric reducer is most commonly used and often eccentric reducer used in piping in about pump and pipe rack area.
As a result, eccentric reducers are most often found in gas pipes and pipes with vertical fluid flow. Eccentric reducers have one flat side that is useful for discharging gases or liquids and for opening and retaining the reducer. As a result, eccentric reducers are usually used with horizontally installed fluid pipes.
Horizontal liquid reducers are usually eccentric, with a flat top that avoids the accumulation of air bubbles in the system. Eccentric reducers are used on the suction side of pumps to stop air trapping in the tubing. The gradual accumulation of air in a concentric reducer can result in a large bubble, causing the pump to stall or cavitation when drawn into the pump. Horizontal gas reducers are often eccentric with smooth bottoms, allowing condensed water or oil to drain at low stages.
Concentric Reducer vs Eccentric Reducer Differences
Concentric reducers are widely used while eccentric reducers are applied to maintain the top and bottom pipe level. Eccentric Reducers also avoids trapping of air inside the pipe, and Concentric Reducer removes noise pollution.
Manufacturing Process of Steel Pipe Reducer
There are versatile manufacturing processes for the reducers. These are made of welded pipes with the required filling material. However, EFW and ERW pipes cannot use the reducer. To manufacture forged parts, different kinds of methods are used including cold and hot forming processes. It includes the ‘Outer Die Method.’
Outer Dia Method
It is the most common method for manufacturing the steel pipe reducer. The pipe is cut and pressed in the outer die whereas, one end of the pipe is compressed into the smaller size. This method is fit for manufacturing small and medium-size reducers.
Connection Types of Pipe Reducer
Ranges from different connection types, pipe reducer could be classified with socket weld reducer and butt weld reducer.
Socket Weld Reducer vs Butt Weld Reducer
Socket weld reducer also called socket weld insert, it has three types 1, 2 and 3. Manufacturing standards comply to ASME B16.11.
The Socket Weld resists ½ of the strength of butt welding, so it is used for small-diameter pipes possessing a diameter of NPS 2 or less. Butt Weld has good strength, as it is suitable for high pressure and temperature pipelines.
Butt weld reducer ends in plan or beveled, manufactured in accordance with ASME B16.9 and welding process according ASME B16.25.
Pipe Reducer Material Types
- Carbon Steel Reducer vs Stainless Steel Reducer
The reducers can be made of Carbon Steel, Alloy, or Stainless steel and much more. In comparison to the Stainless Steel Reducer, Carbon Steel Reducer possesses high-pressure resistance, higher strength, and wear resistant but this can be easily corroded. - Carbon Steel Reducer material standards and grades
A234 WPB, A420 WPL6, MSS-SP-75 WPHY 42, 46, 52, 56, 60, 65 and 70. - For Stainless Steel Reducer
ASTM A403 WP 304, 304L, A403, 316, 316L, 317, 317L, 321, 310 and 904L, etc. - For Alloy Pipe Reducer
A234 WP1, WP5, WP9, WP11, WP22, WP91 etc.
We supply steel pipe reducer with below ranges
- Standard: ASME B16.9, DIN2615, JIS B2312, ASME B16.11
- Material: Carbon Steel ASTM A234 WPB,
- Alloy Steel ASTM A234 WP1, WP5, WP9, WP11, WP22
- Stainless Steel ASTM A403 304/316
- Types: Equal and Reducing
- Size Range: 1/2”x1/2”x1/4”-20”x20”x8”
- Wall thickness: Sch10, Sch40, Sch80
- Pressure Rations: 3000#, 6000#, 9000#
- Coating: Black Paint, Galvanized
Standard
Pipe fitting dimensions are in either metric or Standard English. Because pipe fitting covers Pipe Fitting Dimensions several aspects, only the most common pipe fitting sizes can be given here. The most applied version is the 90° long radius and the 45° elbow, while the 90° short radius elbow is applied if there is too little space. The function of a 180° elbow is to change direction of flow through 180°. Both, the LR and the SR types have a center to center dimension double the matching 90° elbows. These fittings will generally be used in furnesses or other heating or cooling units.
Some of the standards that apply to buttwelded fittings are listed below. Many organizations such as ASME, ASTM, ISO, MSS, etc. have very well developed standards and specifications for buttwelded fittings. It is always up to the designer to ensure that they are following the applicable standard and company specification, if available, during the design process.
Some widely used pipe fitting standards are as follows:
ASME: American Society for Mechanical Engineers
This is one of the reputed organizations in the world developing codes and standards.
The schedule number for pipe fitting starts from ASME/ANSI B16. The various classifications of ASME/ANSI B16 standards for different pipe fittings are as follows:
- ASME/ANSI B16.1 – 1998 – Cast Iron Pipe Flanges and Flanged Fittings
- ASME/ANSI B16.3 – 1998 – Malleable Iron Threaded Fittings
- ASME/ANSI B16.4 – 1998 – Cast Iron Threaded Fittings
- ASME/ANSI B16.5 – 1996 – Pipe Flanges and Flanged Fittings
- ASME/ANSI B16.11 – 2001 – Forged Steel Fittings, Socket-Welding and Threaded
- ASME/ANSI B16.14 – 1991 – Ferrous Pipe Plugs, Bushings and Locknuts with Pipe Threads
- ASME/ANSI B16.15 – 1985 (R1994) – Cast Bronze Threaded Fittings
- ASME/ANSI B16.25 – 1997 – Buttwelding Ends
- ASME/ANSI B16.36 – 1996 – Orifice Flanges etc.
ASTM International: American Society for Testing and Materials
This is one of the largest voluntary standards development organizations in the world. It was originally known as the American Society for Testing and Materials (ASTM).
- ASTM A105 / A105M – Specification for Carbon Steel Forgings for Piping Applications
- ASTM A234 / A234M – Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
- ASTM A403 / A403M – Specification for Wrought Austenitic Stainless Steel Piping Fittings
- ASTM A420 / A420M – Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
AWWA: American Water Works Association
AWWA About – Established in 1881, the American Water Works Association is the largest nonprofit, scientific and educational association dedicated to managing and treating water, the world’s most important resource.
- AWWA C110 – Ductile-Iron and Gray-Iron Fittings, 3 Inch Through 48 Inch (75 mm Through 1200 mm), for Water and Other Liquids
- AWWA C208 – Dimensions for Fabricated Steel Water Pipe Fittings
ANSI: The American National Standards Institute
ANSI is a private, non-profit organization. Its main function is to administer and coordinate the U.S. voluntary standardization and conformity assessment system. It provides a forum for development of American national standards. ANSI assigns “schedule numbers”. These numbers classify wall thicknesses for different pressure uses.
MSS STANDARDS: Manufacturers Standardization Society
The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry is a non-profit technical association organized for development and improvement of industry, national and international codes and standards for: Valves, Valve Actuators, Valve Modification, Pipe Fittings, Pipe Hangers, Pipe Supports, Flanges and Associated Seals
- MSS SP-43 – Wrought Stainless Steel Butt-Welding Fittings Including Reference to Other Corrosion Resistant Materials
- MSS SP-75 – Specifications for High Test Wrought Buttwelding Fittings
- MSS SP-73 – Brazing Joints for Copper and Copper Alloy Pressure Fittings
- MSS SP-83 – Class 3000 Steel Pipe Unions, Socket-Welding and Threaded
- MSS SP-97 – Integrally Reinforced Forged Branch Outlet Fittings — Socket Welding, Threaded, and Buttwelding Ends
- MSS SP-106 – Cast Copper Alloy Flanges and Flanged Fittings Class 125,150, and 300
- MSS SP-119 – Factory-Made Wrought Belled End Socket Welding Fittings
Difference between “Standard” and “Codes”:
Piping codes imply the requirements of design, fabrication, use of materials, tests and inspection of various pipe and piping system. It has a limited jurisdiction defined by the code. On the other hand, piping standards imply application design and construction rules and requirements for pipe fittings like adapters, flanges, sleeves, elbows, union, tees, valves etc. Like a code, it also has a limited scope defined by the standard.
Factors affecting standards: “Standards” on pipe fittings are based on certain factors like as follows:
- Pressure-temperature ratings
- Size
- Design
- Coatings
- Materials
- Marking
- End connections
- Dimensions and tolerances
- Threading
- Pattern taper etc.
BSP: British Standard Pipe
BSP is the U.K. standard for pipe fittings. This refers to a family of standard screw thread types for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread. This has been adopted internationally. It is also known as British Standard Pipe Taper threads (BSPT )or British Standard Pipe Parallel (Straight) threads (BSPP ). While the BSPT achieves pressure tight joints by the threads alone, the BSPP requires a sealing ring.
JIS: Japanese Industrial Standards
This is the Japanese industrial standards or the standards used for industrial activities in Japan for pipe, tube and fittings and published through Japanese Standards Associations.
NPT: National Pipe Thread
National Pipe Thread is a U.S. standard straight (NPS) threads or for tapered (NPT) threads. This is the most popular US standard for pipe fittings. NPT fittings are based on the internal diameter (ID) of the pipe fitting.
BOLTS & NUTS
We are manufacturer of Flange bolts & Nuts and supply high quality
- A193 = This specification covers alloy and stainless steel bolting material for pressure vessels, Valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
- A320 = Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service.
- A194 = Standard specification for nuts in many different material types.
AN: Here, “A” stands for Army and “N” stands for Navy
The AN standard was originally designed for the U.S. Military. Whenever, a pipe fitting is AN fittings, it means that the fittings are measured on the outside diameter of the fittings, that is, in 1/16 inch increments.
For example, an AN 4 fitting means a fitting with an external diameter of approximately 4/16″ or ¼”. It is to be noted that approximation is important because AN external diameter is not a direct fit with an equivalent NPT thread.
Dash (-) size
Dash size is the standard used to refer to the inside diameter of a hose. This indicates the size by a two digit number which represents the relative ID in sixteenths of an inch. This is also used interchangeably with AN fittings. For example, a Dash “8” fitting means an AN 8 fitting.
ISO: International Organization for Standardization
ISO is the industrial pipe, tube and fittings standards and specifications from the International Organization for Standardization. ISO standards are numbered. They have format as follows:
“ISO[/IEC] [IS] nnnnn[:yyyy] Title” where
- nnnnn: standard number
- yyyy: year published, and
- Title: describes the subject
How are pipe fittings measured?
Pipe fittings are measured by their diameter, wall thickness (known as “schedule”), and shape or configuration. (Fittings are also defined by their material grade and whether they are welded or seamless.)
Diameter refers to outside diameter of a pipe or fitting.
The North American standard is known as Nominal Pipe Size (NPS). The International Standard is known as Diameter Nominal (DN). Pipes and fittings are actually made in similar sizes around the world: they are just labeled differently.
From ½ in to 12 inch “Nominal Pipe Size”, outside diameters are slightly larger than indicated size; inside diameters get smaller as schedules grow.
From 14 in and larger “Nominal Pipe Size”, outside diameters are exactly as indicated size; inside diameters get smaller as schedules grow.
As with other North American standards (inch, foot, yard, mile, …), many pipe standards (diameters up to 12 inch and wall thickness) are based on historical precedents (a toolmaker’s dies during US Civil War) rather than a “scientific” method.
Schedule Numbers
The schedule numbers are used by the ANSI (American National Standards Institute) to denote wall thickness. The schedule numbers encompass all pipe dimensions beginning at NPS 1/8” up NPS 36”. Note that this configuration is only for fittings that match with a particular ANSI schedule number.
Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures.
- Schedule, often shortened as sch, is a North American standard that refers to wall thickness of a pipe or pipe fitting. Higher schedules mean thicker walls that can resist higher pressures.
- Pipe standards define these wall thicknesses: SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS and XXS. (S following a number is for stainless steel. Sizes without an S are for carbon steel.)
- Higher schedules are heavier, require more material and are therefore more costly to make and install.
What does “schedule” mean for pipe fittings?
Schedule, often shortened as SCH, is a North American standard that refers to wall thickness of a pipe or pipe fitting.
What is schedule 40, SCH80?
Higher schedules mean thicker walls that can resist higher pressures.
Pipe standards define these wall thicknesses: SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS and XXS.
(S following a number is for stainless steel. Sizes without an S are for carbon steel.)
Higher schedules are heavier, require more material and are therefore more costly to make and install.
General standard
| Standard | Specification |
|---|---|
| ASTM A234 | Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service |
| ASTM A420 | Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service |
| ASTM A234 WPB | ASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services. WPB is one of the steel grade in this standard |
| ASME B16.9 | ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200). |
| ASME B16.28 | ASME B16.28 Standard covers ratings, overall dimensions, testing, tolerances, and markings for wrought carbon and alloy steel buttwelding short radius elbows and returns. |
| MSS SP-97 | MSS SP-97 Standard Practice covers essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements for 90 degree integrally reinforced forged branch outlet fittings of buttwelding, socket welding, and threaded types. |
| ASTM A403 | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings. |
Wide variety for all areas of application
| DIN | EN | ASME |
|---|---|---|
| St 35.8 I St 35.8 III 15 Mo 3 13 CrMo 4 4 10 CrMo 9 10 St 35 N St 52.0 St 52.4 | P235GH-TC1 P235GH-TC2 16Mo3 13CrMo4-5 10CrMo9-10 X10CrMoVNb9-1 P215NL P265NL L360NB L360NE P355N P355NL1 P355NH | WPB WPL6 WPL3 WPHY 52 WP11 WP22 WP5 WP9 WP91 WP92 |
ASTM A234
ASTM A234/ASME SA234M standard specification for piping fittings of wrought carbon steel and alloy steel for moderate and high temperature service.
Chemical Composition (%) of ASTM A234/A234M
| Grade | Type | C | Si | S | P | Mn | Cr | Ni | Mo | Other | ób | ós | δ5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WPB | 0.3 | 0.1min | 0.058 | 0.05 | 0.29-1.06 | 0.4 | 0.4 | 0.15 | V:0.06;Nb:0.02 | 415-585 | 240 | 22 | 197 |
| WPC | 0.35 | 0.1min | 0.058 | 0.05 | 0.29-1.06 | 0.4 | 0.4 | 0.15 | V:0.06;Nb:0.02 | 485-655 | 275 | 22 | 197 |
| WP1 | 0.28 | 0.1-0.5 | 0.045 | 0.045 | 0.3-0.9 | 0.44-0.65 | 380-550 | 205 | 22 | 197 | |||
| WP12 CL1 | 0.05-0.2 | 0.6 | 0.045 | 0.045 | 0.3-0.8 | 0.8-1.25 | 0.44-0.65 | 415-585 | 220 | 22 | 197 | ||
| WP12 CL2 | 0.05-0.2 | 0.6 | 0.045 | 0.045 | 0.3-0.8 | 0.8-1.25 | 0.44-0.65 | 485-655 | 275 | 22 | 197 | ||
| WP11 CL1 | 0.05-0.15 | 0.5-1 | 0.03 | 0.03 | 0.3-0.6 | 1-1.5 | 0.44-0.65 | 415-585 | 205 | 22 | 197 | ||
| WP11 CL2 | 0.05-0.2 | 0.5-1 | 0.04 | 0.04 | 0.3-0.8 | 1-1.5 | 0.44-0.65 | 485-655 | 275 | 22 | 197 | ||
| WP11 CL3 | 0.05-0.2 | 0.5-1 | 0.04 | 0.04 | 0.3-0.8 | 1-1.5 | 0.44-0.65 | 520-690 | 310 | 22 | 197 | ||
| WP22 CL1 | 0.05-0.15 | 0.5 | 0.04 | 0.04 | 0.3-0.6 | 1.9-2.6 | 0.87-1.13 | 415-585 | 205 | 22 | 197 | ||
| WP22 CL3 | 0.05-0.15 | 0.5 | 0.04 | 0.04 | 0.3-0.6 | 1.9-2.6 | 0.87-1.13 | 520-690 | 310 | 22 | 197 | ||
| WP5 CL1 | 0.15 | 0.5 | 0.03 | 0.04 | 0.3-0.6 | 4-6 | 0.44-0.65 | 415-585 | 205 | 22 | 217 | ||
| WP5 CL3 | 0.15 | 0.5 | 0.03 | 0.04 | 0.3-0.6 | 4-6 | 0.44-0.65 | 520-690 | 310 | 22 | 217 | ||
| WP9 CL1 | 0.15 | 1 | 0.03 | 0.03 | 0.3-0.6 | 8-10 | 0.9-1.1 | 415-585 | 205 | 22 | 217 | ||
| WP9 CL3 | 0.15 | 1 | 0.03 | 0.03 | 0.3-0.6 | 8-10 | 0.9-1.1 | 520-690 | 310 | 22 | 217 | ||
| WPR | 0.2 | 0.05 | 0.045 | 0.4-1.06 | 1.6-2.24 | 435-605 | 315 | 22/28 | 217 | ||||
| WP91 | 0.08-0.12 | 0.2-0.5 | 0.01 | 0.02 | 0.3-0.6 | 8-9.5 | 0.4 | 0.85-1.05 | See sdandard | 585-760 | 415 | 20 | 248 |
| WP911 | 0.09-0.13 | 0.1-0.5 | 0.01 | 0.02 | 0.3-0.6 | 8.5-10.5 | 0.4 | 0.9-1.1 | See sdandard | 620-840 | 440 | 20 | 248 |
For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.
The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
The sum of Cr and Mo shall not exceed 0.32%.
The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
Mechanical properties of ASTM A234
| Tensile Requirements | WPB | WPC, WP11CL2 | WP11CL1 | WP11CL3 |
|---|---|---|---|---|
| Tensile Strength, min, ksi[MPa] (0.2% offset or 0.5% extension-under-load) | 60-85 [415-585] | 70-95 [485-655] | 60-85 [415-585] | 75-100 [520-690] |
| Yield Strength, min, ksi[MPa] | 32 [240] | 40 [275] | 30 [205] | 45 [310] |
ASTM A403
ASTM A403 Standard specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications.
Chemical Composition (%) of ASTM A403
| Steel No. | Type | C | Si | S | P | Mn | Cr | Ni | Mo | Other | ób | ós | δ5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WP304 | 0.08 | 1 | 0.03 | 0.045 | 2 | 18-20 | 8-11 | 515 | 205 | 28 | |||
| WP304H | 0.04-0.1 | 1 | 0.03 | 0.045 | 2 | 18-20 | 8-11 | 515 | 205 | 28 | |||
| WP304L | 0.035 | 1 | 0.03 | 0.045 | 2 | 18-20 | 8-13 | 485 | 170 | 28 | |||
| WP304LN | 0.03 | 0.75 | 0.03 | 0.045 | 2 | 18-20 | 8-10.5 | N2:0.1-0.16 | 515 | 205 | 28 | ||
| WP304N | 0.08 | 0.75 | 0.03 | 0.045 | 2 | 18-20 | 8-11 | N2:0.1-0.16 | 550 | 240 | 28 | ||
| WP309 | 0.15 | 1 | 0.03 | 0.045 | 2 | 22-24 | 12-15 | 515 | 205 | 28 | |||
| WP310 | 0.15 | 1.5 | 0.03 | 0.045 | 2 | 24-26 | 19-22 | 515 | 205 | 28 | |||
| WP316 | 0.08 | 1 | 0.03 | 0.045 | 2 | 16-18 | 10-14 | 2-3 | 515 | 205 | 28 | ||
| WP316H | 0.04-0.1 | 1 | 0.03 | 0.045 | 2 | 16-18 | 10-14 | 2-3 | 515 | 205 | 28 | ||
| WP316LN | 0.03 | 0.75 | 0.03 | 0.045 | 2 | 16-18 | 11-14 | 2-3 | N2:0.1-0.16 | 515 | 205 | 28 | |
| WP316L | 0.035 | 1 | 0.03 | 0.045 | 2 | 16-18 | 10-16 | 2-3 | 485 | 170 | 28 | ||
| WP316N | 0.08 | 0.75 | 0.03 | 0.045 | 2 | 16-18 | 11-14 | 2-3 | N2:0.1-0.16 | 550 | 240 | 28 | |
| WP317 | 0.08 | 1 | 0.03 | 0.045 | 2 | 18-20 | 11-15 | 3-4 | 515 | 205 | 28 | ||
| WP317L | 0.03 | 1 | 0.03 | 0.045 | 2 | 18-20 | 11-15 | 3-4 | 515 | 205 | 28 | ||
| WP321 | 0.08 | 1 | 0.03 | 0.045 | 2 | 17-20 | 9-13 | Ti:5C-0.7 | 515 | 205 | 28 | ||
| WP321H | 0.04-0.1 | 1 | 0.03 | 0.045 | 2 | 17-20 | 9-13 | Ti:4C-0.7 | 515 | 205 | 28 | ||
| WP347 | 0.08 | 1 | 0.03 | 0.045 | 2 | 17-20 | 9-13 | Nb+Ta:10C-1.1 | 515 | 205 | 28 | ||
| WP347H | 0.04-0.1 | 1 | 0.03 | 0.045 | 2 | 17-20 | 9-13 | Nb+Ta:8C-1 | 515 | 205 | 28 | ||
| WP348 | 0.08 | 1 | 0.03 | 0.045 | 2 | 17-20 | 9-13 | Ta:0.1 | 515 | 205 | 28 | ||
| WP348H | 0.04-0.1 | 1 | 0.03 | 0.045 | 2 | 17-20 | 9-13 | Ta:0.1 | 515 | 205 | 28 |
For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.
The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
The sum of Cr and Mo shall not exceed 0.32%.
The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
Mechanical properties of ASTM A403
| Grade | UNS | Tensile Strength, min | Yield Strength,min | Elongation min % in 4D | |||
|---|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | Longit % | Trans% | ||
| ALL | ALL | 75 | 515 | 30 | 205 | 28 | 20 |
| 304L | S30403 | 70 | 485 | 25 | 170 | 28 | 20 |
| 316L | S31603 | 70 | 485 | 25 | 170 | 28 | 20 |
| 304N | S30451 | 80 | 550 | 35 | 240 | 28 | 20 |
| 316N | S31651 | 80 | 550 | 35 | 240 | 28 | 20 |
| S31726 | 80 | 550 | 35 | 240 | 28 | 20 | |
| XM-19 | S20910 | 100 | 690 | 55 | 380 | 28 | 20 |
| S31254 | 94-119 | 650-820 | 44 | 300 | 28 | 20 | |
| S34565 | 115 | 795 | 60 | 415 | 28 | 20 | |
| S33228 | 73 | 500 | 27 | 185 | 28 | 20 | |
Material Furnished to this specification shall conform to the requirements of specifications A960/A960M including any supplementary requirements that are indicates in the purchase order. Failure to company with the common requirements of Specification A960/A960M constitutes non-conformance with this specification . In case of conflict between this specification and Specification A960/A960M , this specification shall prevail.
ASTM A420
ASTM A420/A420M-07 standard specification for piping fittings of wrought carbon steel and alloy steel for low-temperature service.
ASTM A420 Chemical Composition Requirements
| Elements | WPL6, % | WPL9, % | WPL3, % | WPL8, % |
|---|---|---|---|---|
| Carbon [C] | ≤0.30 | ≤0.20 | ≤0.20 | ≤0.13 |
| Manganese [Mn] | 0.50-1.35 | 0.40-1.06 | 0.31-0.64 | ≤0.90 |
| Phosphorus [P] | ≤0.035 | ≤0.030 | ≤0.05 | ≤0.030 |
| Sulfur [S] | ≤0.040 | ≤0.030 | ≤0.05 | ≤0.030 |
| Silicon [Si] | 0.15-0.40 | … | 0.13-0.37 | 0.13-0.37 |
| Nickel [Ni] | ≤0.40 | 1.60-2.24 | 3.2-3.8 | 8.4-9.6 |
| Chromium [Cr] | ≤0.30 | ... | ... | ... |
| Molybdenum [Mo] | ≤0.12 | ... | ... | ... |
| Copper [Cu] | ≤0.40 | 0.75-1.25 | … | … |
| Columbium [Cb] | ≤0.02 | ... | ... | ... |
| Vanadium[V] | ≤0.08 | ... | ... | ... |
*Fittings of WPL3 made from plate or forgings may have 0.90 % max manganese.
*Fittings of WPL8 made from plate may have 0.98 % max manganese.
ASTM A420 Mechanical Properties
| ASTM A420/ A420M | Tensile Strength, min. | Yield Strength, min. | Elongation %, min | |||
|---|---|---|---|---|---|---|
| Grade | ksi | MPa | ksi | MPa | Longitudinal | Transverse |
| WPL6 | 65-95 | 415-655 | 35 | 240 | 22 | 12 |
| WPL9 | 63-88 | 435-610 | 46 | 315 | 20 | … |
| WPL3 | 65-90 | 450-620 | 35 | 240 | 22 | 14 |
| WPL8 | 100-125 | 690-865 | 75 | 515 | 16 | … |
ASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services.
ASME B16.9
ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200).
ASME / ANSI B16.9 dimension
| Nominal | Outside Diameter | 90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Long Radius | Short Radius | Long Radius | Long Radius | ||||
| (inches) | (mm) | (inches) | Center to Face | Center to Face | Center to Face | Radius | Center to Center | Back to face |
| (inches) | (inches) | (inches) | (inches) | (inches) | (inches) | |||
| 1/2 | 21.3 | 0.84 | 1.5 | – | 5/8 | 2 | 1.875 | |
| 3/4 | 26.7 | 1.05 | 1.125 | – | 7/16 | 2.25 | 1.6875 | |
| 1 | 33.4 | 1.315 | 1.5 | 1 | 7/8 | 3 | 2.1875 | |
| 1.25 | 42.2 | 1.66 | 1.875 | 1.25 | 1 | 3.75 | 2.75 | |
| 1.5 | 48.3 | 1.9 | 2.25 | 1.5 | 1.125 | 3 | 4.5 | 3.25 |
| 2 | 60.3 | 2.375 | 3 | 2 | 1.375 | 4 | 6 | 4.1875 |
| 2.5 | 73 | 2.875 | 3.75 | 2.5 | 1.75 | 5 | 7.5 | 5.1875 |
| 3 | 88.9 | 3.5 | 4.5 | 3 | 2 | 6 | 9 | 6.25 |
| 3.5 | 101.6 | 4 | 5.25 | 3.5 | 2.25 | 7 | 10.5 | 7.25 |
| 4 | 114.3 | 4.5 | 6 | 4 | 2.5 | 8 | 12 | 8.25 |
| 5 | 141.3 | 5.563 | 7.5 | 5 | 3.125 | 10 | 15 | 10.3125 |
| 6 | 168.3 | 6.625 | 9 | 6 | 3.75 | 12 | 18 | 12.3125 |
| 8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16.3125 |
| 10 | 273.1 | 10.75 | 15 | 10 | 6.25 | 15 | 30 | 20.375 |
| 12 | 323.9 | 12.75 | 18 | 12 | 7.5 | 18 | 36 | 24.375 |
Tolerances of Welded Fittings
| NOMINAL PIPE SIZE NPS | ANGULARITY TOLERANCES | ANGULARITY TOLERANCES |
|---|---|---|
| Size | Off Angle Q | Off Plane P |
| ½ to 4 | 0.03 | 0.06 |
| 5 to 8 | 0.06 | 0.12 |
| 10 to 12 | 0.09 | 0.19 |
| 14 to 16 | 0.09 | 0.25 |
| 18 to 24 | 0.12 | 0.38 |
| 26 to 30 | 0.19 | 0.38 |
| 32 to 42 | 0.19 | 0.5 |
| 44 to 48 | 0.18 | 0.75 |
1. Out-of-round is the sum of absolute values of plus and minus tolerance.
2. This tolerance may not apply in localized areas of formed fittings where increased wall thickness is required to meet design requirements of ASME B16.9.
3. The inside diameter and the nominal wall thicknesses at ends are to be specified by the purchaser.
4. Unless otherwise specified by the purchaser, these tolerances apply to the nominal inside diameter, which equals the difference between the nominal outside diameter and twice the nominal wall thickness.
MSS SP-97
MSS SP-97 Standard Practice covers essential dimensions, finish, tolerances, testing, marking, material, and minimum strength requirements for 90 degree integrally reinforced forged branch outlet fittings of buttwelding, socket welding, and threaded types.
Buttwelding Ends
| Nominal wall Thickness : t | End Preparation |
|---|---|
| t<5mm (for austenitic alloy steel t<4mm) | Cut square or slightly chamfer at manufacturer ‘ s option |
5| Plain Bevel as in sketch ( a ) above |
|
| t>22mm | Compound Bevel as in sketch ( b ) above |
Chemical Composition Requirements of MSS SP 75
| Elements | Value, % |
|---|---|
| Carbon (C) | ≤0.30 |
| Manganese (Mn) | ≤1.60 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.035 |
| Copper (Cu) | ≤0.50 |
| Nickel (Ni) | ≤0.50 |
| Silicon (Si) | ≤0.50 |
| Chromium (Cr) | ≤0.25 |
| Molybdenum (Mo) | ≤0.13 |
| Vanadium (V) | ≤0.13 |
| Columbium (Cb) | ≤0.10 |
| Titanium(Ti) | ≤0.05 |
*2. Carbon equivalent C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 shall not exceed 0.45%.
Manufacturing Standards of Buttweld Pipe End, Buttweld Pipe Cap
- ASME: ANSI B16.9, ANSI B16.28, MSS-SP-43
- DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
- EN: EN10253-1, EN10253-2
- ASTM A403 – ASME SA403 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
- ASME B16.9 Factory-Made Wrought Fittings Buttwelding
- ASME B16.25 Buttwelding Ends
- ASME B16.28 Wrought Steel Short Radius Elbows and Buttwelding Returns
- MSS SP-43 Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications
Buttweld Pipe End Material Grades
- Stainless Steel Pipe Cap ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
- Carbon Steel Pipe Cap ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
- Low Temperature Carbon Steel Pipe Cap ASTM A420 WPL3, A420 WPL6
- Alloy Steel Pipe Cap ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
- Duplex Pipe Cap ASTM A 815, ASME SA 815 UNS NO S31803, S32205. Werkstoff No. 1.4462
- Nickel Alloy Pipe Cap ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 )
Size
A reducer is the component in a pipeline that reduces the pipe size from a larger to a smaller bore (inner diameter).
| Nominal pipe | Outside Diameter at Bevel | Center to End | |||
|---|---|---|---|---|---|
| DN size | D1 | D2 | End to End | ||
| Series A | Series B | Series A | Series B | L | |
| 20×15 | 26.9 | 25 | 21.3 | 18 | 38 |
| 25×20 | 33.7 | 32 | 26.9 | 25 | 51 |
| 25×15 | 33.7 | 32 | 21.3 | 18 | 51 |
| 32×25 | 42.4 | 38 | 33.7 | 32 | 51 |
| 32×20 | 42.4 | 38 | 26.9 | 25 | 51 |
| 32×15 | 42.4 | 38 | 21.3 | 18 | 51 |
| 40×32 | 48.3 | 45 | 42.4 | 38 | 64 |
| 40×25 | 48.3 | 45 | 33.7 | 32 | 64 |
| 40×20 | 48.3 | 45 | 26.7 | 25 | 64 |
| 40×15 | 48.3 | 45 | 21.3 | 18 | 64 |
| 50×40 | 60.3 | 57 | 48.3 | 45 | 76 |
| 50×32 | 60.3 | 57 | 42.4 | 38 | 76 |
| 50×25 | 60.3 | 57 | 33.7 | 32 | 76 |
| 50×20 | 60.3 | 57 | 26.9 | 25 | 76 |
| 65×50 | 76.1(73) | 76 | 60.3 | 57 | 89 |
| 65×40 | 76.1(73) | 76 | 48.3 | 45 | 89 |
| 65×32 | 76.1(73) | 76 | 42.4 | 38 | 89 |
| 65×25 | 76.1(73) | 76 | 33.7 | 32 | 89 |
| 80×65 | 88.9 | 89 | 76.1(73) | 76 | 89 |
| 80×50 | 88.9 | 89 | 60.3 | 57 | 89 |
| 80×40 | 88.9 | 89 | 48.3 | 45 | 89 |
| 80×32 | 88.9 | 89 | 42.4 | 38 | 89 |
| 90×80 | 101.6 | - | 88.9 | - | 102 |
| 90×65 | 101.6 | - | 76.1(73) | - | 102 |
| 90×50 | 101.6 | - | 60.3 | - | 102 |
| 90×40 | 101.6 | - | 48.3 | - | 102 |
| 90×32 | 101.6 | - | 42.4 | - | 102 |
| 100×90 | 114.3 | 108 | 101.6 | - | 102 |
| 100×80 | 114.3 | 108 | 88.9 | 89 | 102 |
| 100×65 | 114.3 | 108 | 76.1(73) | 76 | 102 |
| 100×50 | 114.3 | 108 | 60.3 | 57 | 102 |
| 100×40 | 114.3 | 108 | 48.3 | 45 | 102 |
| 125×100 | 139.7 | 133 | 114.3 | 108 | 127 |
| 125×90 | 139.7 | - | 101.6 | - | 127 |
| 125×80 | 139.7 | 133 | 88.9 | 89 | 127 |
| 125×65 | 139.7 | 133 | 76.1(73) | 76 | 127 |
| 125×50 | 139.7 | 133 | 60.3 | 57 | 127 |
| 150×125 | 168.3 | 159 | 139.7 | 133 | 140 |
| 150×100 | 168.3 | 159 | 114.3 | 108 | 140 |
| 150×90 | 168.3 | - | 101.6 | - | 140 |
| 150×80 | 168.3 | 159 | 88.9 | 89 | 140 |
| 150×65 | 168.3 | 159 | 76.1(73) | 76 | 140 |
| 200×150 | 219.1 | 219 | 163.8 | 159 | 152 |
| 200×125 | 219.1 | 219 | 139.7 | 133 | 152 |
| 200×100 | 219.1 | 219 | 114.3 | 108 | 152 |
| 200×90 | 219.1 | - | 101.6 | - | 152 |
| 250×200 | 273 | 273 | 219.1 | 219 | 178 |
| 250×150 | 273 | 273 | 168.3 | 159 | 178 |
| 250×125 | 273 | 273 | 139.7 | 133 | 178 |
| 250×100 | 273 | 273 | 114.3 | 108 | 178 |
| 300×250 | 323.9 | 325 | 273 | 273 | 203 |
| 300×200 | 323.9 | 325 | 219.1 | 219 | 203 |
| 300×150 | 323.9 | 325 | 168.3 | 159 | 203 |
| 300×125 | 323.9 | 325 | 139.7 | 133 | 203 |
| 350×300 | 355.6 | 377 | 323.9 | 325 | 330 |
| 350×250 | 355.6 | 377 | 273 | 273 | 330 |
| 350×200 | 355.6 | 377 | 219.1 | 219 | 330 |
| 350×150 | 355.6 | 377 | 168.3 | 159 | 330 |
| 400×350 | 406.4 | 426 | 355.6 | 377 | 356 |
| 400×300 | 406.4 | 426 | 323.9 | 325 | 356 |
| 400×250 | 406.4 | 426 | 273 | 273 | 356 |
| 400×200 | 406.4 | 426 | 219.1 | 219 | 356 |
| 450×400 | 457.2 | 478 | 406.4 | 426 | 381 |
| 450×350 | 457.2 | 478 | 355.6 | 377 | 381 |
| 450×300 | 457.2 | 478 | 323.9 | 325 | 381 |
| 450×250 | 457.2 | 478 | 273 | 273 | 381 |
| 500×450 | 508 | 529 | 457.2 | 478 | 508 |
| 500×400 | 508 | 529 | 406.4 | 426 | 508 |
| 500×350 | 508 | 529 | 355.6 | 377 | 508 |
| 500×300 | 508 | 529 | 323.9 | 325 | 508 |
| 550×500 | 559 | - | 508 | - | 508 |
| 550×450 | 559 | - | 457 | - | 508 |
| 550×400 | 559 | - | 406 | - | 508 |
| 550×350 | 559 | - | 356 | - | 508 |
| 600×550 | 610 | - | 559 | - | 508 |
| 600×500 | 610 | 630 | 508 | 530 | 508 |
| 600×450 | 610 | 630 | 457 | 480 | 508 |
| 600×400 | 610 | 630 | 406 | 426 | 508 |
| 650×600 | 660 | - | 610 | - | 610 |
| 650×550 | 660 | - | 559 | 630 | 610 |
| 650×500 | 660 | - | 508 | - | 610 |
| 650×450 | 660 | - | 457 | 630 | 610 |
| 700×650 | 711 | - | 660 | - | 610 |
| 700×600 | 711 | 720 | 310 | 720 | 610 |
| 700×550 | 711 | - | 559 | - | 610 |
| 700×500 | 711 | 720 | 508 | 630 | 610 |
| 750×700 | 762 | - | 711 | - | 610 |
| 750×650 | 762 | - | 660 | - | 610 |
| 750×600 | 762 | - | 610 | - | 610 |
| 750×550 | 762 | - | 559 | - | 610 |
| 800×750 | 813 | - | 762 | - | 610 |
| 800×700 | 813 | 820 | 711 | 720 | 610 |
| 800×650 | 813 | - | 660 | - | 610 |
| 800×600 | 813 | 820 | 610 | 630 | 610 |
| 850×800 | 864 | - | 813 | - | 610 |
| 850×750 | 864 | - | 762 | - | 610 |
| 850×700 | 864 | - | 711 | - | 610 |
| 850×650 | 864 | - | 660 | - | 610 |
| 900×850 | 914 | - | 864 | - | 610 |
| 900×800 | 914 | 920 | 813 | 820 | 610 |
| 900×750 | 914 | - | 762 | - | 610 |
| 900×700 | 914 | 920 | 711 | 820 | 610 |
| 950×900 | 965 | - | 914 | - | 610 |
| 950×850 | 965 | - | 864 | - | 610 |
| 950×800 | 965 | - | 813 | - | 610 |
| 950×750 | 965 | - | 762 | - | 610 |
| 1000×950 | 1016 | - | 965 | - | 610 |
| 1000×900 | 1016 | 1020 | 914 | 920 | 610 |
| 1000×850 | 1016 | - | 864 | - | 610 |
| 1000×800 | 1016 | 1020 | 813 | 920 | 610 |
| 1050×1000 | 1067 | - | 1016 | - | 610 |
| 1050×950 | 1067 | - | 965 | - | 610 |
| 1050×900 | 1067 | - | 914 | - | 610 |
| 1050×850 | 1067 | - | 864 | - | 610 |
| 1100×1050 | 1118 | - | 1067 | - | 610 |
| 1100×1000 | 1118 | 1120 | 1016 | 1020 | 610 |
| 1100×950 | 1118 | - | 965 | - | 610 |
| 1100×900 | 1118 | 1120 | 914 | 1020 | 610 |
| 1150×1100 | 1168 | - | 1118 | - | 711 |
| 1150×1050 | 1168 | - | 1067 | - | 711 |
| 1150×1000 | 1168 | - | 1016 | - | 711 |
| 1150×950 | 1168 | - | 965 | - | 711 |
| 1200×1150 | 1220 | - | 1168 | - | 711 |
| 1200×1100 | 1220 | 1220 | 1118 | 1120 | 711 |
| 1200×1050 | 1220 | - | 1067 | - | 711 |
| 1200×1000 | 1220 | 1220 | 1016 | 1120 | 711 |
The length of a Reducer is very short in relation to the diameter, so in some dimensions the transition from one to another diameter is very abruptly. For example, a reducer 6″ x 2½” has a length of 140 mm. On this short distance a pipeline will be reduced from 168.3 mm O.D. to 73 mm O.D. During the design phase of a new pipe system, a piping designer certainly must think about it.
ASME B16.9 Butt weld Reducers Dimensions
| Size (inches) | mm | D | d | H |
|---|---|---|---|---|
| 3/4 x 3/4 | 20 x 15 | 26,67 | 21,34 | 38,10 |
| 3/4 x 3/8 | 20 x 10 | 26,67 | 17,14 | 38,10 |
| 1 x 3/4 | 25 x 20 | 33,40 | 26,67 | 50,80 |
| 1 x 1/2 | 25 x 15 | 33,40 | 21,34 | 50,80 |
| 1 1/4 x 1 | 32 x 25 | 42,16 | 33,40 | 50,80 |
| 1 1/4 x 3/4 | 32 x 20 | 42,16 | 26,67 | 50,80 |
| 1 1/4 x 1/2 | 32 x 15 | 42,16 | 21,34 | 50,80 |
| 1 1/2 x 1 1/4 | 40 x 32 | 48,26 | 42,16 | 63,50 |
| 1 1/2 x 1 | 40 x 25 | 48,26 | 33,40 | 63,50 |
| 1 1/2 x 3/4 | 40 x 20 | 48,26 | 26,67 | 63,50 |
| 1 1/2 x 1/2 | 40 x 15 | 48,26 | 21,34 | 63,50 |
| 2 x 1 1/2 | 50 x 40 | 60,32 | 48,26 | 76,20 |
| 2 x 1 1/4 | 50 x 32 | 60,32 | 42,16 | 76,20 |
| 2 x 1 | 50 x 25 | 60,32 | 33,40 | 76,20 |
| 2 x 3/4 | 50 x 20 | 60,32 | 26,67 | 76,20 |
| 2 1/2 x 2 | 65 x 50 | 73,02 | 60,32 | 88,90 |
| 2 1/2 x 1 1/2 | 65 x 40 | 73,02 | 48,26 | 88,90 |
| 2 1/2 x 1 1/4 | 65 x 32 | 73,02 | 42,16 | 88,90 |
| 2 1/2 x1 | 65 x 25 | 73,02 | 33,40 | 88,90 |
| 3 x 2 1/2 | 80 x 65 | 88,90 | 73,02 | 88,90 |
| 3 x 2 | 80 x 50 | 88,90 | 60,32 | 88,90 |
| 3 x 1 1/2 | 80 x 40 | 88,90 | 48,26 | 88,90 |
| 3 x 1 1/4 | 80 x 32 | 88,90 | 42,16 | 88,90 |
| 3 1/2 x 3 | 90 x 80 | 101,60 | 88,90 | 101.6 |
| 3 1/2 x 2 1/2 | 90 x 65 | 101,60 | 73,02 | 101.6 |
| 3 1/2 x 2 | 90 x 50 | 101,60 | 60,32 | 101.6 |
| 3 1/2 x 1 1/2 | 90 x 40 | 101,60 | 48,26 | 101.6 |
| 3 1/2 x 1 1/4 | 90 x 32 | 101,60 | 42,16 | 101.6 |
| 4 x 3 1/2 | 100 x 90 | 114,30 | 73,02 | 101.6 |
| 4 x 3 | 100 x 80 | 114,30 | 88,90 | 101.6 |
| 4 x 2 1/2 | 100 x 65 | 114,30 | 73,02 | 101.6 |
| 4 x 2 | 100 x 50 | 114,30 | 60,32 | 101.6 |
| 4 x 1 1/2 | 100 x 40 | 114,30 | 48,26 | 101.6 |
| 5 x 4 | 125 x 100 | 141,30 | 114,30 | 127,00 |
| 5 x 3 1/2 | 125 x 90 | 141,30 | 101,60 | 127,00 |
| 5 x 3 | 125 x 80 | 141,30 | 88,90 | 127,00 |
| 5 x 2 1/2 | 125 x 65 | 141,30 | 73,02 | 127,00 |
| 5 x 2 | 125 x 50 | 141,30 | 60,32 | 127,00 |
| 6 x 5 | 150 x 125 | 168,27 | 141,30 | 139,7 |
| 6 x 4 | 150 x 100 | 168,27 | 114,30 | 139,7 |
| 6 x 1/2 | 150 x 90 | 168,27 | 101,60 | 139,7 |
| 6 x 3 | 150 x 80 | 168,27 | 88,90 | 139,7 |
| 6 x 1/2 | 150 x 65 | 168,27 | 73,02 | 139,7 |
| 8 x 6 | 200 x 150 | 219,07 | 168,27 | 152,4 |
| 8 x 5 | 200 x 125 | 219,07 | 141,30 | 152,4 |
| 8 x 4 | 200 x 100 | 219,07 | 114,30 | 152,4 |
| 8 x 3 1/2 | 200 x 90 | 219,07 | 101,60 | 152,4 |
| 10 x 8 | 250 x 200 | 273,05 | 219,07 | 177,8 |
| 10 x 6 | 250 x 150 | 273,05 | 168,27 | 177,8 |
| 10 x 5 | 250 x 125 | 273,05 | 141,30 | 177,8 |
| 10 x 4 | 250 x 100 | 273,05 | 114,30 | 177,8 |
| 12 x 10 | 300 x 250 | 323,85 | 273,05 | 203,2 |
| 12 x 8 | 300 x 200 | 323,85 | 219,07 | 203,2 |
| 12 x 6 | 300 x 150 | 323,85 | 168,27 | 203,2 |
| 12 x 5 | 300 x 125 | 323,85 | 141,30 | 203,2 |
| 14 x 12 | 350 x 300 | 355,60 | 323,85 | 330,2 |
| 14 x 10 | 350 x 250 | 355,60 | 273,05 | 330,2 |
| 14 x 8 | 350 x 200 | 355,60 | 219,07 | 330,2 |
| 14 x 6 | 350 x 150 | 355,60 | 168,27 | 330,2 |
| 16 x 14 | 400 x 350 | 406,40 | 355,60 | 355,6 |
| 16 x 12 | 400 x 300 | 406,40 | 323,85 | 355,6 |
| 16 x 10 | 400 x 250 | 406,40 | 273,05 | 355,6 |
| 16 x 8 | 400 x 200 | 406,40 | 219,07 | 355,6 |
| 18 x 16 | 450 x 400 | 457,20 | 406,40 | 381,0 |
| 18 x 14 | 450 x 350 | 457,20 | 355,60 | 381,0 |
| 18 x 12 | 450 x 300 | 457,20 | 323,85 | 381,0 |
| 18 x 10 | 450 x 250 | 457,20 | 273,05 | 381,0 |
| 20 x 18 | 500 x 450 | 508,00 | 457,20 | 508,0 |
| 20 x 16 | 500 x 400 | 508,00 | 406,40 | 508,0 |
| 20 x 14 | 500 x 350 | 508,00 | 355,60 | 508,0 |
| 20 x 12 | 500 x 300 | 508,00 | 323,85 | 508,0 |
| 22 x 20 | 550 x 500 | 558,80 | 508,00 | 508,0 |
| 22 x 18 | 550 x 450 | 558,80 | 457,20 | 508,0 |
| 22 x 16 | 550 x 400 | 558,80 | 406,40 | 508,0 |
| 22 x 14 | 550 x 350 | 558,80 | 355,60 | 508,0 |
| 24 x 22 | 600 x 550 | 609,6 | 558,80 | 508,0 |
| 24 x 20 | 600 x 500 | 609,6 | 508,00 | 508,0 |
| 24 x 18 | 600 x 450 | 609,6 | 457,20 | 508,0 |
| 24 x 16 | 600 x 400 | 609,6 | 406,40 | 508,0 |
ASME B16.9 Butt weld reducers dimensions tolerances
| Nominal Pipe Size (NPS) | Outside Ø at Bevel | Inside Ø at End | Wall Thickness t / t1 | Overall Length H |
|---|---|---|---|---|
| 1/2 a 2 1/2 | 1 | 0,8 | Not | 2 |
| 3 a 3 1/2 | 1 | 1,6 | less | 2 |
| 4 | 1 | 1,6 | than | 2 |
| 5 a 6 | 2 | 1,6 | 87,50% | 2 |
| 8 | 2 | 1,6 | of nominal | 2 |
| 10 | 1 | 3,2 | tickness | 2 |
| 12 a 18 | +4 -3 | 3,2 | 3 | |
| 20 a 24 | +6 -5 | 4,8 | 3 | |
| 26 a 30 | 2 | 4,8 | 3 | |
| 32 a 48 | 2 | 4,8 | 5 |
ASME B16.9 Butt weld Reducers Weights
| NPS | REDUCERS* | |||
|---|---|---|---|---|
| inches | Sch. | Sch. | Sch. | Sch. |
| 5S | 10S | 40S | 80S | |
| 0.04 | 0.04 | 0.05 | 0.06 | |
| 0.1 | 0.1 | 0.14 | 0.18 | |
| 1 | 0.12 | 0.12 | 0.16 | 0.22 |
| 1.25 | 0.18 | 0.18 | 0.22 | 0.27 |
| 1.5 | 0.21 | 0.21 | 0.28 | 0.33 |
| 2 | 0.3 | 0.3 | 0.4 | 0.55 |
| 2.5 | 0.45 | 0.45 | 0.8 | 1 |
| 3 | 0.5 | 0.5 | 0.9 | 1.2 |
| 4 | 0.8 | 0.8 | 1.5 | 2.2 |
| 5 | 1.4 | 1.4 | 2.7 | 3.7 |
| 6 | 2 | 2 | 4 | 5.8 |
| 8 | 3.1 | 3.1 | 6.9 | 9.3 |
| 10 | 4.8 | 4.8 | 10.5 | 14.5 |
| 12 | 9 | 9 | 19 | 25 |
| 14 | 15.5 | 15.5 | 31 | 41.5 |
| 16 | 19 | 19 | 38 | 50.5 |
| 18 | 23 | 23 | 46 | 61.5 |
| 20 | 34 | 34 | 58.5 | 78 |
| 24 | 50 | 50 | 75 | 100 |
Weights are referred to the reduction with the first smaller diameter
ASME B16.9 butt weld eccentric reducers dimensions
| Nominal Diameter | Outside Diameter D1*D2 | End to End | ||
|---|---|---|---|---|
| DN | NPS | Series A | Series B | H |
| 20×15 | 3/4×1/2 | 26.9×21.3 | 25×18 | 38 |
| 20×10 | 3/4×3/8 | 26.9×17.3 | 25×14 | 38 |
| 25×20 | 1×3/4 | 33.7×26.9 | 32×25 | 51 |
| 25×15 | 1×1/2 | 33.7×21.3 | 32×18 | 51 |
| 32×25 | 1.1/4×1 | 42.4×33.7 | 38×32 | 51 |
| 32×20 | 1.1/4×3/4 | 42.4×26.9 | 38×25 | 51 |
| 32×15 | 1.1/4×1/2 | 42.4×21.3 | 38×18 | 51 |
| 40×32 | 1.1/2×1.1/4 | 48.3×42.4 | 45×38 | 64 |
| 40×25 | 1.1/2×1 | 48.3×33.7 | 45×32 | 64 |
| 40×20 | 1.1/2×3/4 | 48.3×26.9 | 45×25 | 64 |
| 40×15 | 1.1/2×1/2 | 48.3×21.3 | 45×18 | 64 |
| 50×40 | 2×1.1/2 | 60.3×48.3 | 57×45 | 76 |
| 50×32 | 2×1.1/4 | 60.3×42.4 | 57×38 | 76 |
| 50×25 | 2×1 | 60.3×33.7 | 57×32 | 76 |
| 50×20 | 2×3/4 | 60.3×26.9 | 57×25 | 76 |
| 65×50 | 2.1/2×2 | 73.0×60.3 | 76×57 | 89 |
| 65×40 | 2.1/2×1.1/2 | 73.0×48.3 | 76×45 | 89 |
| 65×32 | 2.1/2×1.1/4 | 73.0×42.4 | 76×38 | 89 |
| 65×25 | 2.1/2×1 | 73.0×33.7 | 76×32 | 89 |
| 80×65 | 3×2.1/2 | 88.9×73.0 | 89×76 | 89 |
| 80×50 | 3×2 | 88.9×60.3 | 89×57 | 89 |
| 80×40 | 3×1.1/2 | 88.9×48.3 | 89×45 | 89 |
| 80×32 | 3×1.1/4 | 88.9×42.4 | 89×38 | 89 |
| 90×80 | 3.1/2×3 | 101.6×88.9 | - | 102 |
| 90×65 | 3.1/2×2.1/2 | 101.6×73.0 | - | 102 |
| 90×50 | 3.1/2×2 | 101.6×60.3 | - | 102 |
| 90×40 | 3.1/2×1.1/2 | 101.6×48.3 | - | 102 |
| 90×32 | 3.1/2×1.1/4 | 101.6×42.4 | - | 102 |
| 100×90 | 4×3.1/2 | 114.3×101.6 | - | 102 |
| 100×80 | 4×3 | 114.3×88.9 | 108×89 | 102 |
| 100×65 | 4×2.1/2 | 114.3×73.0 | 108×76 | 102 |
| 100×50 | 4×2 | 114.3×60.3 | 108×57 | 102 |
| 100×40 | 4×1.1/2 | 114.3×48.3 | 108×45 | 102 |
| 125×100 | 5×4 | 141.3×114.3 | 133×108 | 127 |
| 125×90 | 5×3.1/2 | 141.3×101.6 | - | 127 |
| 125×80 | 5×3 | 141.3×88.9 | 133×89 | 127 |
| 125×65 | 5×2.1/2 | 141.3×73.0 | 133×76 | 127 |
| 125×50 | 5×2 | 141.3×60.3 | 133×57 | 127 |
| 150×125 | 6×5 | 168.3×141.3 | 159×133 | 140 |
| 150×100 | 6×5 | 168.3×114.3 | 159×108 | 140 |
| 150×90 | 6×3.1/2 | 168.3×101.6 | - | 140 |
| 150×80 | 6×3 | 168.3×88.9 | 159×89 | 140 |
| 150×65 | 6×2.1/2 | 168.3×73.0 | 159×76 | 140 |
| 200×150 | 8×6 | 219.1×168.3 | 219×159 | 152 |
| 200×125 | 8×5 | 219.1×141.3 | 219×133 | 152 |
| 200×100 | 8×4 | 219.1×114.3 | 219×108 | 152 |
| 200×90 | 8×3.1/2 | 219.1×101.6 | - | 152 |
| 250×200 | 10×8 | 273.0×219.1 | 273×219 | 178 |
| 250×150 | 10×6 | 273.0×168.3 | 273×159 | 178 |
| 250×125 | 10×5 | 273.0×141.3 | 273×133 | 178 |
| 250×100 | 10×4 | 273.0×114.3 | 273×108 | 178 |
| 300×250 | 12×10 | 323.9×273.1 | 325×273 | 203 |
| 300×200 | 12×8 | 323.9×219.1 | 325×219 | 203 |
| 300×150 | 12×6 | 323.9×168.3 | 325×159 | 203 |
| 300×125 | 12×5 | 323.9×141.3 | 325×133 | 203 |
| 350×300 | 14×12 | 355.6×323.9 | 377×325 | 330 |
| 350×250 | 14×10 | 355.6×273.0 | 377×273 | 330 |
| 350×200 | 14×8 | 355.6×219.1 | 377×219 | 330 |
| 350×150 | 14×6 | 355.6×168.3 | 377×159 | 330 |
| 400×350 | 16×14 | 406.4×355.6 | 426×377 | 356 |
| 400×300 | 16×12 | 406.4×323.9 | 426×325 | 356 |
| 400×250 | 16×10 | 406.4×273.0 | 426×273 | 356 |
| 400×200 | 16×8 | 406.4×219.1 | 426×219 | 356 |
| 450×400 | 18×16 | 457×406.4 | 478×426 | 381 |
| 450×350 | 18×14 | 457×355.6 | 478×377 | 381 |
| 450×300 | 18×12 | 457×323.9 | 478×325 | 381 |
| 450×250 | 18×10 | 457×273.0 | 478×273 | 381 |
| 500×450 | 20×18 | 508×457 | 529×478 | 508 |
| 500×400 | 20×16 | 508×406.4 | 529×426 | 508 |
| 500×350 | 20×14 | 508×355.6 | 529×377 | 508 |
| 500×300 | 20×12 | 508×323.9 | 529×325 | 508 |
| 550×500 | 22×20 | 559×508 | - | 508 |
| 550×450 | 22×18 | 559×457 | - | 508 |
| 550×400 | 22×16 | 559×406.4 | - | 508 |
| 550×350 | 22×14 | 559×355.6 | - | 508 |
| 600×550 | 24×22 | 610×559 | - | 508 |
| 600×500 | 24×20 | 610×508 | 630×529 | 508 |
| 600×450 | 24×18 | 610×457 | 630×478 | 508 |
| 600×400 | 24×22 | 610×406.4 | 630×426 | 508 |
| 650×600 | 26×24 | 660×610 | - | 610 |
| 650×550 | 26×22 | 660×559 | - | 610 |
| 650×500 | 26×20 | 660×508 | - | 610 |
| 650×450 | 26×18 | 660×457 | - | 610 |
| 700×650 | 28×26 | 711×660 | - | 610 |
| 700×600 | 28×24 | 711×610 | 720×630 | 610 |
| 700×550 | 28×22 | 711×559 | - | 610 |
| 700×500 | 28×20 | 711×508 | 720×530 | 610 |
| 750×700 | 30×28 | 762×711 | - | 610 |
| 750×650 | 30×26 | 762×660 | - | 610 |
| 750×600 | 30×24 | 762×610 | - | 610 |
| 750×550 | 30×22 | 762×559 | - | 610 |
| 800×750 | 32×30 | 813×762 | - | 610 |
| 800×700 | 32×28 | 813×711 | 820×720 | 610 |
| 800×650 | 32×26 | 813×660 | - | 610 |
| 800×600 | 32×24 | 813×610 | 820×630 | 610 |
| 850×800 | 34×32 | 864×813 | - | 610 |
| 850×750 | 34×30 | 864×762 | - | 610 |
| 850×700 | 34×28 | 864×711 | - | 610 |
| 850×650 | 34×26 | 864×660 | - | 610 |
| 900×850 | 36×34 | 914×864 | - | 610 |
| 900×800 | 36×32 | 914×813 | 920×820 | 610 |
| 900×750 | 36×30 | 914×762 | - | 610 |
| 900×700 | 36×28 | 914×711 | 920×720 | 610 |
| 950×900 | 38×36 | 965×914 | - | 610 |
| 950×850 | 38×34 | 965×864 | - | 610 |
| 950×800 | 38×32 | 965×813 | - | 610 |
| 950×750 | 38×30 | 965×762 | - | 610 |
| 1000×950 | 40×38 | 1016×965 | - | 610 |
| 1000×900 | 40×36 | 1016×914 | 1020×920 | 610 |
| 1000×850 | 40×34 | 1016×864 | - | 610 |
| 1000×800 | 40×32 | 1016×813 | 1020×820 | 610 |
| 1050×1000 | 42×40 | 1067×1016 | - | 610 |
| 1050×950 | 42×38 | 1067×965 | - | 610 |
| 1050×900 | 42×36 | 1067×914 | - | 610 |
| 1050×850 | 42×34 | 1067×864 | - | 610 |
| 1100×1050 | 44×42 | 1118×1067 | - | 610 |
| 1100×1000 | 44×40 | 1118×1016 | 1120×1020 | 610 |
| 1100×950 | 44×38 | 1118×965 | - | 610 |
| 1100×900 | 44×36 | 1118×914 | 1220×920 | 610 |
| 1150×1100 | 46×44 | 1168×1118 | - | 711 |
| 1150×1050 | 46×42 | 1168×1067 | - | 711 |
| 1150×1000 | 46×40 | 1168×1016 | - | 711 |
| 1150×950 | 46×38 | 1168×965 | - | 711 |
| 1200×1150 | 48×46 | 1220×1168 | - | 711 |
| 1200×1100 | 48×44 | 1220×1118 | 1220×1120 | 711 |
| 1200×1050 | 48×42 | 1220×1067 | - | 711 |
| 1200×1000 | 48×40 | 1220×1016 | 1220×1020 | 711 |
ANSI--American National Standards Institute
| Nominal Pipe Size (NPS) | Outside Diameter at Bevel | Center-to-End | |
|---|---|---|---|
| D1 | D2 | H | |
| ¾×½ | 1.05 | 0.84 | 1.5 |
| ¾×⅜ | 1.05 | 0.68 | 1.5 |
| 1×¾ | 1.32 | 1.05 | 2 |
| 1×½ | 1.32 | 0.84 | 2 |
| 1¼×1 | 1.66 | 1.32 | 2 |
| 1¼×¾ | 1.66 | 1.05 | 2 |
| 1¼×½ | 1.66 | 0.84 | 2 |
| 1½×1¼ | 1.9 | 1.66 | 2.5 |
| 1½×1 | 1.9 | 1.32 | 2.5 |
| 1½×¾ | 1.9 | 1.05 | 2.5 |
| 1½×½ | 1.9 | 0.84 | 2.5 |
| 2×1½ | 2.38 | 1.9 | 3 |
| 2×1¼ | 2.38 | 1.66 | 3 |
| 2×1 | 2.38 | 1.32 | 3 |
| 2×¾ | 2.38 | 1.05 | 3 |
| 2½×2 | 2.88 | 2.38 | 3.5 |
| 2½×1½ | 2.88 | 1.9 | 3.5 |
| 2½×1¼ | 2.88 | 1.66 | 3.5 |
| 2½×1 | 2.88 | 1.32 | 3.5 |
| 3×2½ | 3.5 | 2.88 | 3.5 |
| 3×2 | 3.5 | 2.38 | 3.5 |
| 3×1½ | 3.5 | 1.9 | 3.5 |
| 3×1¼ | 3.5 | 1.66 | 3.5 |
| 3½ ×3 | 4 | 3.5 | 4 |
| 3½×2½ | 4 | 2.88 | 4 |
| 3½ ×2 | 4 | 2.38 | 4 |
| 3½×1½ | 4 | 1.9 | 4 |
| 3½×1¼ | 4 | 1.66 | 4 |
| 4×3½ | 4.5 | 4 | 4 |
| 4×3 | 4.5 | 3.5 | 4 |
| 4×2½ | 4.5 | 2.88 | 4 |
| 4×2 | 4.5 | 2.38 | 4 |
| 4×1½ | 4.5 | 1.9 | 4 |
| 5×4 | 5.56 | 4.5 | 5 |
| 5×3½ | 5.56 | 4 | 5 |
| 5×3 | 5.56 | 3.5 | 5 |
| 5×2½ | 5.56 | 2.88 | 5 |
| 5×2 | 5.56 | 2.38 | 5 |
| 6×5 | 6.62 | 5.56 | 5.5 |
| 6×4 | 6.62 | 4.5 | 5.5 |
| 6×3½ | 6.62 | 4 | 5.5 |
| 6×3 | 6.62 | 3.5 | 5.5 |
| 6×2½ | 6.62 | 2.88 | 5.5 |
| 8×6 | 8.62 | 6.62 | 6 |
| 8×5 | 8.62 | 5.56 | 6 |
| 8×4 | 8.62 | 4.5 | 6 |
| 8×3½ | 8.62 | 4 | 6 |
| 10×8 | 10.75 | 8.62 | 7 |
| 10×6 | 10.75 | 6.62 | 7 |
| 10×5 | 10.75 | 5.56 | 7 |
| 10×4 | 10.75 | 4.5 | 7 |
| 12×10 | 12.75 | 10.75 | 8 |
| 12×8 | 12.75 | 8.62 | 8 |
| 12×6 | 12.75 | 6.62 | 8 |
| 12×5 | 12.75 | 5.56 | 8 |
| 14×12 | 14 | 12.75 | 13 |
| 14×10 | 14 | 10.75 | 13 |
| 14×8 | 14 | 8.62 | 13 |
| 14×6 | 14 | 6.62 | 13 |
| 16×14 | 16 | 14 | 14 |
| 16×12 | 16 | 12.75 | 14 |
| 16×10 | 16 | 10.75 | 14 |
| 16×8 | 16 | 8.62 | 14 |
| 18×16 | 18 | 16 | 15 |
| 18×14 | 18 | 14 | 15 |
| 18×12 | 18 | 12.75 | 15 |
| 18×10 | 18 | 10.75 | 15 |
| 20×18 | 20 | 18 | 20 |
| 20×16 | 20 | 16 | 20 |
| 20×14 | 20 | 14 | 20 |
| 20×12 | 20 | 12.75 | 20 |
| 22×20 | 22 | 20 | 20 |
| 22×18 | 22 | 18 | 20 |
| 22×16 | 22 | 16 | 20 |
| 22×14 | 22 | 14 | 20 |
| 24×22 | 24 | 22 | 20 |
| 24×20 | 24 | 20 | 20 |
| 24×18 | 24 | 18 | 20 |
| 24×16 | 24 | 16 | 20 |
| 26×24 | 26 | 24 | 24 |
| 26×22 | 26 | 22 | 24 |
| 26×20 | 26 | 20 | 24 |
| 26×18 | 26 | 18 | 24 |
| 28×26 | 28 | 26 | 24 |
| 28×24 | 28 | 24 | 24 |
| 28×20 | 28 | 20 | 24 |
| 28×18 | 28 | 18 | 24 |
| 30×28 | 30 | 28 | 24 |
| 30×26 | 30 | 26 | 24 |
| 30×24 | 30 | 24 | 24 |
| 30×20 | 30 | 20 | 24 |
| 32×30 | 32 | 30 | 24 |
| 32×28 | 32 | 28 | 24 |
| 32×26 | 32 | 26 | 24 |
| 32×24 | 32 | 24 | 24 |
| 34×32 | 34 | 32 | 24 |
| 34×30 | 34 | 30 | 24 |
| 34×26 | 34 | 26 | 24 |
| 34×24 | 34 | 24 | 24 |
| 36×34 | 36 | 34 | 24 |
| 36×32 | 36 | 32 | 24 |
| 36×30 | 36 | 30 | 24 |
| 36×26 | 36 | 26 | 24 |
| 36×24 | 36 | 24 | 24 |
| 38×36 | 38 | 36 | 24 |
| 38×34 | 38 | 34 | 24 |
| 38×32 | 38 | 32 | 24 |
| 38×30 | 38 | 30 | 24 |
| 38×28 | 38 | 28 | 24 |
| 38×26 | 38 | 26 | 24 |
| 40×38 | 40 | 38 | 24 |
| 40×36 | 40 | 36 | 24 |
| 40×34 | 40 | 34 | 24 |
| 40×32 | 40 | 32 | 24 |
| 40×30 | 40 | 30 | 24 |
| 42×40 | 42 | 40 | 24 |
| 42×38 | 42 | 38 | 24 |
| 42×36 | 42 | 36 | 24 |
| 42×34 | 42 | 34 | 24 |
| 42×32 | 42 | 32 | 24 |
| 42×30 | 42 | 30 | 24 |
| 44×42 | 44 | 42 | 24 |
| 44×40 | 44 | 40 | 24 |
| 44×38 | 44 | 38 | 24 |
| 44×36 | 44 | 36 | 24 |
| 46×44 | 46 | 44 | 28 |
| 46×42 | 46 | 42 | 28 |
| 46×40 | 46 | 40 | 28 |
| 46×38 | 46 | 38 | 28 |
| 48×46 | 48 | 46 | 28 |
| 48×44 | 48 | 44 | 28 |
| 48×42 | 48 | 42 | 28 |
| 48×40 | 48 | 40 | 28 |
| Nominal Pipe Size (NPS) | Outside Diameter | End-to-End | ||
|---|---|---|---|---|
| A | B | D1 | D2 | H |
| 20×15 | ¾×½ | 27.2 | 21.7 | 38.1 |
| 25×20 | 1×¾ | 34 | 27.2 | 50.8 |
| 25×15 | 1×½ | 34 | 21.7 | 50.8 |
| 32×25 | 1¼×1 | 42.7 | 34 | 50.8 |
| 32×20 | 1¼×¾ | 42.7 | 27.2 | 50.8 |
| 32×15 | 1¼×½ | 42.7 | 21.7 | 50.8 |
| 40×32 | 1 ½×1¼ | 48.6 | 42.7 | 63.5 |
| 40×25 | 1 ½×1 | 48.6 | 34 | 63.5 |
| 40×20 | 1 ½×¾ | 48.6 | 27.2 | 63.5 |
| 40×15 | 1 ½×½ | 48.6 | 21.7 | 63.5 |
| 50×40 | 2×1½ | 60.5 | 48.6 | 76.2 |
| 50×32 | 2×1¼ | 60.5 | 42.7 | 76.2 |
| 50×25 | 2×1 | 60.5 | 34 | 76.2 |
| 50×20 | 2×¾ | 60.5 | 27.2 | 76.2 |
| 65×50 | 2 ½×2 | 76.3 | 60.5 | 88.9 |
| 65×40 | 2 ½×1½ | 76.3 | 48.6 | 88.9 |
| 65×32 | 2 ½×1¼ | 76.3 | 42.7 | 88.9 |
| 65×25 | 2 ½×1 | 76.3 | 34 | 88.9 |
| 80×65 | 3×2½ | 89.1 | 76.3 | 88.9 |
| 80×50 | 3×2 | 89.1 | 60.5 | 88.9 |
| 80×40 | 3×1½ | 89.1 | 48.6 | 88.9 |
| 80×32 | 3×1¼ | 89.1 | 42.7 | 88.9 |
| 90×80 | 3 ½×3 | 101.6 | 89.1 | 101.6 |
| 90×65 | 3 ½×2½ | 101.6 | 76.3 | 101.6 |
| 90×50 | 3 ½×2 | 101.6 | 60.5 | 101.6 |
| 90×40 | 3 ½×1½ | 101.6 | 48.6 | 101.6 |
| 90×32 | 3 ½×1¼ | 101.6 | 42.7 | 101.6 |
| 100×90 | 4×3½ | 114.3 | 101.6 | 101.6 |
| 100×80 | 4×3 | 114.3 | 89.1 | 101.6 |
| 100×65 | 4×2½ | 114.3 | 76.3 | 101.6 |
| 100×50 | 4×2 | 114.3 | 60.5 | 101.6 |
| 100×40 | 4×1½ | 114.3 | 48.6 | 101.6 |
| 125×100 | 5×4 | 139.8 | 114.3 | 127 |
| 125×90 | 5×3½ | 139.8 | 101.6 | 127 |
| 125×80 | 5×3 | 139.8 | 89.1 | 127 |
| 125×65 | 5×2½ | 139.8 | 76.3 | 127 |
| 125×50 | 5×2 | 139.8 | 60.5 | 127 |
| 150×125 | 6×5 | 165.2 | 139.8 | 139.7 |
| 150×100 | 6×4 | 165.2 | 114.3 | 139.7 |
| 150×90 | 6×3½ | 165.2 | 101.6 | 139.7 |
| 150×80 | 6×3 | 165.2 | 89.1 | 139.7 |
| 150×65 | 6×2½ | 165.2 | 76.3 | 139.7 |
| 200×150 | 8×6 | 216.3 | 165.2 | 152.4 |
| 200×125 | 8×5 | 216.3 | 139.8 | 152.4 |
| 200×100 | 8×4 | 216.3 | 114.3 | 152.4 |
| 200×90 | 8×3½ | 216.3 | 101.6 | 152.4 |
| 250×200 | 10×8 | 267.4 | 216.3 | 177.8 |
| 250×150 | 10×6 | 267.4 | 165.2 | 177.8 |
| 250×125 | 10×5 | 267.4 | 139.8 | 177.8 |
| 250×100 | 10×4 | 267.4 | 114.3 | 177.8 |
| 300×250 | 12×10 | 318.5 | 267.4 | 203.2 |
| 300×200 | 12×8 | 318.5 | 216.3 | 203.2 |
| 300×150 | 12×6 | 318.5 | 165.2 | 203.2 |
| 300×125 | 12×5 | 318.5 | 139.8 | 203.3 |
| 350×300 | 14×12 | 355.6 | 318.5 | 330.2 |
| 350×250 | 14×10 | 355.6 | 267.4 | 330.2 |
| 350×200 | 14×8 | 355.6 | 216.3 | 330.2 |
| 350×150 | 14×6 | 355.6 | 165.2 | 330.2 |
| 400×350 | 16×14 | 406.4 | 355.6 | 355.6 |
| 400×300 | 16×12 | 406.4 | 318.5 | 355.6 |
| 400×250 | 16×10 | 406.4 | 267.4 | 355.6 |
| 400×200 | 16×8 | 406.4 | 216.3 | 355.6 |
| 450×400 | 18×16 | 457.2 | 406.4 | 381 |
| 450×350 | 18×14 | 457.2 | 355.6 | 381 |
| 450×300 | 18×12 | 457.2 | 318.5 | 381 |
| 450×250 | 18×10 | 457.2 | 267.4 | 381 |
| 500×450 | 20×18 | 508 | 457.2 | 508 |
| 500×400 | 20×16 | 508 | 406.4 | 508 |
| 500×350 | 20×14 | 508 | 355.6 | 508 |
| 500×300 | 20×12 | 508 | 318.5 | 508 |
| 550×500 | 22×20 | 558.8 | 508 | 508 |
| 550×450 | 22×18 | 558.8 | 457.2 | 508 |
| 550×400 | 22×16 | 558.8 | 406.4 | 508 |
| 550×350 | 22×14 | 558.8 | 355.6 | 508 |
| 600×550 | 24×22 | 609.6 | 558.8 | 508 |
| 600×500 | 24×20 | 609.6 | 508 | 508 |
| 600×450 | 24×18 | 609.6 | 457.2 | 508 |
| 600×400 | 24×16 | 609.6 | 406.4 | 508 |
| 650×600 | 26×24 | 660.4 | 609.6 | 609.6 |
| 650×550 | 26×22 | 660.4 | 558.8 | 609.6 |
| 650×500 | 26×20 | 660.4 | 508 | 609.6 |
| 650×450 | 26×18 | 660.4 | 457.2 | 609.6 |
| 700×650 | 28×26 | 711.2 | 660.4 | 609.6 |
| 700×600 | 28×24 | 711.2 | 609.6 | 609.6 |
| 700×550 | 28×22 | 711.2 | 558.8 | 609.6 |
| 700×500 | 28×20 | 711.2 | 508 | 609.6 |
| 750×700 | 30×28 | 762 | 711.2 | 609.6 |
| 750×650 | 30×26 | 762 | 660.4 | 609.6 |
| 750×600 | 30×24 | 762 | 609.4 | 609.6 |
| 750×550 | 90×22 | 762 | 558.8 | 609.6 |
| 800×750 | 32×30 | 812.8 | 762 | 609.6 |
| 800×700 | 32×28 | 812.8 | 711.2 | 609.6 |
| 800×650 | 32×26 | 812.8 | 660.4 | 609.6 |
| 800×600 | 32×24 | 812.8 | 609.6 | 609.6 |
| 850×800 | 34×32 | 863.6 | 812.8 | 609.6 |
| 850×750 | 34×30 | 863.6 | 762 | 609.6 |
| 850×700 | 34×28 | 863.6 | 711.2 | 609.6 |
| 850×650 | 34×26 | 863.6 | 660.4 | 609.6 |
| 900×850 | 36×34 | 914.4 | 863.6 | 609.6 |
| 900×800 | 36×32 | 914.4 | 812.8 | 609.6 |
| 900×750 | 36×30 | 914.4 | 762 | 609.6 |
| 900×700 | 36×28 | 914.4 | 711.2 | 609.6 |
| 950×900 | 38×36 | 965.2 | 914.4 | 609.6 |
| 950×850 | 38×34 | 965.2 | 863.6 | 609.6 |
| 950×800 | 38×32 | 965.2 | 812.8 | 609.6 |
| 950×750 | 38×30 | 965.2 | 762 | 609.6 |
| 1000×950 | 40×38 | 1016 | 965.2 | 609.6 |
| 1000×900 | 40×36 | 1016 | 914.4 | 609.6 |
| 1000×850 | 40×34 | 1016 | 863.6 | 609.6 |
| 1000×800 | 40×32 | 1016 | 812.8 | 609.6 |
| 1050×1000 | 42×40 | 1066.8 | 1016 | 609.6 |
| 1050× 950 | 42×38 | 1066.8 | 965.2 | 609.6 |
| 1050×900 | 42×36 | 1066.8 | 914.4 | 609.6 |
| 1050×850 | 42×34 | 1066.8 | 863.6 | 609.6 |
| 1100×1050 | 44×42 | 1117.6 | 1066.8 | 609.6 |
| 1100×1000 | 44×40 | 1117.6 | 1016 | 609.6 |
| 1100×950 | 44×38 | 1117.6 | 965.2 | 609.6 |
| 1100×900 | 44×36 | 1117.6 | 914.4 | 609.6 |
| 1150×1100 | 46×44 | 1168.4 | 1117.6 | 711.2 |
| 1150×1050 | 46×42 | 1168.4 | 1066.8 | 711.2 |
| 1150×1000 | 46×40 | 1168.4 | 1016 | 711.2 |
| 1150×950 | 46×38 | 1168.4 | 965.2 | 711.2 |
| 1200×1150 | 48×46 | 1219.2 | 1168.4 | 711.2 |
| 1200×1100 | 48×44 | 1219.2 | 1117.6 | 711.2 |
| 1200×1050 | 48×42 | 1219.2 | 1066.8 | 711.2 |
| 1200×1000 | 48×40 | 1219.2 | 1016 | 711.2 |
Applications
A steel pipe reducer is a component used in the pipelines to reduce its size from large to small bore in accordance to the inner diameter. The length of the reduction here is equal to an average of the smaller and larger pipe diameters. Here, the reducer can be used as a diffuser or a nozzle. The reducer helps in meeting the existing piping of varied sizes or hydraulic flow of the piping systems. The usage of a steel reducer is carried out in the chemical factories and power plants. It makes the piping system reliable and compact. It safeguards the piping system from any kind of adverse impact or thermal deformation. When it is on the pressure circle, it prevents from any type of leakage and is easy to install. The nickel or chrome coated reducers extends the product life, useful for high vapor lines, and prevents corrosion.
- Pipe Reducer
- Hydraulic system
- Pneumatic system
- Pharmaceutical fittings
- Air brake fittings
- Gas fittings
- Refrigerant fittings
- Changing the piping diameter
- Handling the expansion, misalignment or vibration problem
Feature
The pipe reducer is one of the pipe fittings, which is used for connecting two pipes with varying diameters. A pipe reducer is used to change rate of fluids the flow through. Reducers are usually made by reducing pressing processes, or by expanding pressing processes or by both reducing and expanding pressing processes together, and we can also adopt stamping processes for reducers with some specifications. Reducers are categorized into types, Eccentric and Concentric Reducer. The pipe reducers are widely available in a various materials as per the demands of its applications and industries and also available in different dimensions too.
- Pipe reducer help to connect large diameter pipe with small diameter pipe.
- Noise and vibration are reduced by using these type of reducers.
- These reducers need a limited amount of setup space.
- The eccentric reducer absorbs sounds generated by the pipe wall as well as fluid tolerated.
- This reducers have the lowest amount of turbulence entrapment.
Packing
For packing of carbon steel flanges with painting,we would use the bubble wrap to protect the painting.For flanges without painting or oiled with long-term shipment,we would suggest client to use the anti-tarnish paper and plastic bag to prevent the rust.
Packing reducers in wooden cases
Wrap the plastic tightly around the pipe to protect the tee
Inquiry
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FAQ
Q: How long is your delivery time? A: The delivery time of customized products is generally 25 35 days, and non customized products are generally shipped within 24 hours after payment. Q: Do you provide samples? Is it free? A: If the value of the sample is low, we will provide it for free, but the freight needs to be paid by the customer. But for some high value samples, we need to charge a fee. Q: What are your payment terms? A: T/T 30% as the deposit,The balance payment is paid in full before shipment Q: What is the packaging and transportation form? A: Non steaming wooden box and iron frame packaging. Special packaging is available according to customer needs. The transportation is mainly by sea. Q: What is your minimum order quantity? A: There is no minimum order quantity requirement. Customized products are tailor made according to the drawings provided by the customer.
