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ASTM A106 pipes

ASTM A106 pipes are carbon seamless steel pipes that are widely used in different industries such as oil and gas pipelines, water transportation, slurry, boiler and high pressure services, construction and structures.

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Description

ASTM A106 pipes are carbon seamless steel pipes that are widely used in different industries such as oil and gas pipelines, water transportation, slurry, boiler and high pressure services, construction and structures.

What is ASTM A106?

A106 pipe is American standard material, including A, B, C three grades, the ingredients of A106 A is carbon and silicon, the tensile strength grade is 330 MPa. The ingredients of A106 B is carbon、manganese and silicon, the tensile strength grade is 415 MPa. The ingredients of A106 C is carbon, manganese and silicon components, the tensile strength grade is 485 MPa.

ASTM A106 seamless pressure pipes (also known as ASME SA106 pipes) are commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers and ships. These pipes must carry fluids that exhibit higher temperature and pressure levels And gas.

ASTM A106 Gr.B is an American brand, and A106 Gr.B has no corresponding brand in China. The chemical composition of A 106Gr.B is as follows:
1. C≤0.25
2. Mn=0.27-0.93
3. P≤0.035
4. S≤0.035
5. Si≤0.1
6. Cr≤0.4
7. Cu≤0.4
8. Mechanical properties: ób≥415/MPa , ós≥240/MPa.

The chemical composition of the material does not correspond to Chinese materials, and the mechanical properties are similar to Chinese (GB/T699) 20# steel. ASTM is a set of American steel pipe standards. ASTM steel pipe A106 A corresponds to the Chinese standard is GB8163 and the material is 10# steel. A106 B corresponds to the Chinese standard. The GB8163 material is 20#, and A106 Gr.B does not correspond to Chinese materials.

Extended information:

ASTM standards are divided into the following six types.
1. Standard Test Method: It is a prescribed procedure used to identify, test and uate the quality, characteristics and parameters of materials, products, systems or services.
2. Standard Specification: It puts forward technical requirements and specific instructions for materials, products, systems, or projects, and also proposes procedures that should be adopted to meet the technical requirements.

3. Standard Practice: It is a program that explains one or more specific operations or functions, but does not produce test results.
4. Standard Terminology: It describes or defines nouns, and explains symbols, abbreviations, and acronyms.

5. Standard Guide: It selects a series or explains its usage, but does not introduce specific implementation methods.
6. Class Fication: It distinguishes and classifies materials, products, systems, or specific services according to their source, composition, performance or use.

A106 pipe has three grades: Grade A and Grade B and C, where in most circumstances used for Grade B.

ASTM A106 pipe (also covered in ASME specifications as S/A 106) is the standard specification for seamless carbon steel pipe for high-temperature service. Most common uses are in refineries and plants when gasses or fluids are transported at high temperatures and pressures.

Chemical composition (%) of ASTM A106

GradeC≤MnP≤S≤Si≥Cr≤Cu≤Mo≤Ni≤V≤
ASTM A106 GradeA0.250.27-0.930.0350.0350.10.40.40.150.40.08
ASTM A106 GradeB0.30.29-1.060.0350.0350.10.40.40.150.40.08
ASTM A106 GradeC0.350.29-1.060.0350.0350.10.40.40.150.40.08
For each reduction of 0.01% for maximum carbon element, an increase of 0.06% manganese above the specified value shall be permitted, and up to maximum of 1.35%. Elements Cr, Cu, Mo, Ni, V combined shall not exceed 1%.

Mechanical properties of ASTM A106

GradeRm Mpa Tensile StrengthYield Point (Mpa)ElongationDelivery Condition
ASTM A106 GradeA≥330≥20520Annealed
ASTM A106 GradeB≥415≥24020Annealed
ASTM A106 GradeC≥485≥27520Annealed
JISASTMBSDINNFISOIndex Number
Std.NoGradeTypeStd.NoGradeTypeStd.NoGradeTypeStd.NoGradeTypeStd.NoGradeTypeStd.NoGradeType
JIS G3456STPT370CASTM A106GrAC3602HFS360C17175St35.8CA49-211TU37bC2604-02-01 00:00:00TS5CC004
(STPT38)"CFS360C17177St37.8CA49-213TU37cC2604-03-01 00:00:00TW9HC
"ERW360CA49-243TU37cC
"CEW360C
STPT410CASTM A106GrBC3602HFS410C17175St45.8CA49-211TU42bC2604-02-01 00:00:00TS9HC
(STPT42)"CFS410C17177St42.8CA49-213TU42cC
"ERW410CA49-243TU42cC
"CEEW410C
STPT480CASTM A106GrCC3602HFS460CA49-211TU48bC2604-02-01 00:00:00TS14C
(STPT42)"CFS460CA49-213TU48cC
"ERW460C
"CEEW460C

Lengths
Lengths required shall be specified on order. No “jointers” permitted unless otherwise specified. If no definite lengths required, following practice applies: Single Random — 17′ ~ 24′ lengths Double Random — 36′ ~ 44′ lengths

Required Markings on Each Length
(On Tags attached to each Bundle in case of Bundled Pipe) Rolled, Stamped, or Stenciled (Mfrs. Option) Manufacturer’s name or brand. Length of pipe. A106 A, A 106 B, A 106 C. ANSI schedule number. Hydrostatic test pressures and/or NDE; Weight per foot (NPS 4 and larger) or NH if neither is specified. Additional “S” if tested supplementary requirements.

Referenced Documents

  • ASTM A 530/A 530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
  • ASTM E 213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
  • ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
  • ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings
  • ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
  • ASME B36.10M Welded and Seamless Wrought Steel Pipe