Custom Clips

Description

Custom clips are the recommended method for tube shield attachment. Choose from bull style, wrap style or overlap style.

Clip Style

• Bull
• Overlap
• Wrap

Tube Diameter

• 0.500” to 5.000” (Tube OD is shield ID)
• XML

Angle of Wrap

• Maximum 240°
• XML

Gauge

• 7 to 24
• XML

Material

• 304 SS
• 316 SS
• 309 SS
• 310 SS
• 430 SS
• Inconel

Clip Length

• Standard is 1”
• XML

Clip Extension (E)

• Bull Style: 0” Standard
• Overlap Style: 0”
• Wrap Style: 1/2” Standard
• XML

Stainless Steel Inventory

Sunny Steel has an extensive inventory in sheet, bar, and welding materials maintained for heat resistant, corrosion resistant, and high temperature alloys. All products are purchased to proprietary customized specifications as well as normal industry standards with supporting documentation. The ability to obtain mill direct pricing and consignment inventory control has enabled our team to provide competitively priced products and control delivery of projects.

The snap ring and boiler tube erosion shields are overlapped and welded, generally about 190-200 degrees erosion shields is a 180-degree semicircle), but also leave a welding position for easy welding and fixing. Generally, each piece of boiler tube erosion shields needs to be equipped with 2-4 snap rings with a pitch of 200-500mm.
The anti-wear snap ring is also called a clamp, buckle, tube clamp, etc.

The main role of the anti-wear tile snap ring: the role of fixing the anti-wear tile to avoid problems such as the anti-wear tile falling off during installation.
The types of common anti-wear tile rings can be divided into: u-shaped lap type snap ring, butt-type semicircular snap ring.

 

 

What is the difference between 310 and 310S?
Type 310S Stainless Steel is identical to Type 310 except for a lower carbon content that minimizes carbide precipitation and improves weldability. They are essentially nonmagnetic as annealed and become lightly magnetic when cold worked.

Applications of Grade 310/310S Stainless Steel
Typical Applications Grade 310/310S is used in fluidised bed combustors, kilns, radiant tubes, tube hangers for petroleum refining and steam boilers, coal gasifier internal components, lead pots, thermowells, refractory anchor bolts, burners and combustion chambers, retorts, muffles, annealing covers, saggers, food processing equipment, cryogenic structures.

If it is likely to be an issue, discussion with the producer can be valuable as minor variations to the precise composition and process can have benefits.

Grade 310/310S is used in fluidised bed combustors, kilns, radiant tubes, tube hangers for petroleum refining and steam boilers, coal gasifier internal components, lead pots, thermowells, refractory anchor bolts, burners and combustion chambers, retorts, muffles, annealing covers, saggers, food processing equipment, cryogenic structures.

Chemical properties of SS 310 / 310S

Weight % (all values are maximum unless a range is otherwise indicated)

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 310	0.015 max	2.0 max	0.15 max	0.020 max	0.015 max	24.00 – 26.00	0.10 max	19.00 – 21.00	54.7 min
SS 310S	0.08 max	2.0 max	1.00 max	0.045 max	0.030 max	24.00 – 26.00	0.75 max	19.00 – 21.00	53.095 min

Mechanical properties of SS 310 / 310S

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.9 g/cm3	1402 °C (2555 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	0.4

Alloy 310 can be easily welded and processed by standard shop fabrication practices.

Alloy 310 is an austenitic stainless steel that combines excellent high temperature properties with good ductility and weldability. It is typically used for elevated temperature applications as its high chromium and nickel content provide solid corrosion resistance, excellent resistance to oxidation, and superior strength in temperatures up to 2100°F. Due to its high chromium and nickel content, it is superior to 304 or 309 stainless in most environments.

Applications

The higher alloyed stainless steels generally have excellent strength at elevated temperatures along with outstanding resistance to creep deformation and environmental attack. Therefore, Alloy 310 is used widely in industries such as heat treatment and chemical processing. Some examples include:

• Furnace Parts
• Oil Burner Parts
• Heat Exchangers
• Welding Filler Wire and Electrodes
• Annealing Covers
• Combustion Tubes
• Fire Box Sheets

Where heavy sections have to we welded, post-weld annealing may be necessary to restore corrosion resistance.

The cross-sectional shape of boiler tube erosion shields is mostly semi-circular (180 degrees), and there are also 120-160 degrees. It is mainly used on finned tubes (water-cooled walls); boiler tubes erosion shields are divided into direct wear-resistant shields, in-curve anti-wear shields, outer-curve anti-wear shields, side-curve anti-wear shields, s-curve anti-wear shields, etc. The length of the straight anti-wear shields ranges from 20mm to 3000mm, and the general length of 1000-2000mm is commonly used. The anti-wear shields with bends generally requires a processing, drawing and the following parameters should be on the drawing: outer diameter of the pipe used, bending of the pipe radius r (to the centre of the pipe), the degree of bending angle, and the length of the straight sections on both sides of the arc segment of the wear-resistant shields.

The most basic parameter of boiler tube erosion shields is the outer diameter of the tube used (that is, the inner diameter of boiler tubes erosion shields). The main specifications of the tube are: 32, 38, 42, 44.5, 48, 51, 57, 60, 63.5 , 76, 89mm, etc .; the inner diameter of the boiler tubes erosion shields is usually 1-3mm larger than the outer diameter of the tube used, depending on the actual requirements.

Install erosion shields with snap ring

The snap ring is a short section that is installed on the pipe in conjunction with the wear-resistant tile. Generally, it is welded to the wear-resistant tile by lap welding, that is, to cover the wear-resistant tile slightly, so it is larger than the wear-resistant tile. The opening arc is around 190-200 degrees, the welding position needs to be set aside to facilitate welding and fixing. The width of the snap ring must not be less than 20mm.

The installation requirements of anti-friction tiles of different shapes are slightly different. Basically, each anti-friction tile is installed with not less than 2-4 snap rings. The snap ring and the anti-friction tile are welded together to prevent expansion due to heat. The tiles fall off, and the joints are required to be fully welded.