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ASTM A333 Grade 10
keyword ASTM A333 Grade 10 Category Steel pipe material Related products Get a quoteChemical and mechanical properties of ASTM A333 Grade 10 spiral steel pipes
1、 Chemical composition
Main elements
Carbon (C): ≤ 0.15% (controlling cold brittleness and optimizing low-temperature toughness).
Manganese (Mn): 0.30%~0.60% (strengthens the matrix and balances strength and plasticity).
Silicon (Si): ≤ 0.50% (auxiliary deoxidation to improve processing performance).
Phosphorus (P) and sulfur (S): both ≤ 0.025% (strictly limit impurities to reduce the risk of low-temperature embrittlement).
Alloy elements
Nickel (Ni): May be added (to enhance low-temperature toughness, but specific content range is not specified).
2、 Mechanical performance
Strength and plasticity
Tensile strength (Rm): ≥ 415 MPa (meets low-temperature pressure requirements).
Yield strength (Rp0.2): ≥ 205 MPa (ensuring structural stability in low-temperature environments).
Elongation (δ%): Longitudinal ≥ 25% (sufficient plastic deformation capacity).
Low temperature toughness
Impact test: It is necessary to pass the Charpy impact test in an extremely low temperature environment (such as -196 ℃) (applicable to low-temperature media such as liquefied natural gas).
3、 Manufacturing and process requirements
Processing technology
Spiral welding process: The weld seam needs to undergo radiographic or ultrasonic testing and complete a water pressure test without defects.
Welding material: low hydrogen type welding material (matching the properties of the base material to avoid hydrogen embrittlement of the weld seam).
Heat treatment
Usually requires normalizing treatment (refining grain size, improving low-temperature performance consistency).
4、 Application scenarios
Low temperature fluid transportation: pipeline systems for liquefied natural gas (LNG), liquid nitrogen, liquid oxygen and other media.
Cryogenic equipment: LNG storage tanks, low-temperature heat exchangers, and chemical plant pipelines.
Note: The chemical composition and mechanical performance requirements of ASTM A333 Grade 10 are similar to those of low-temperature seamless steel pipes, but production verification needs to be carried out in conjunction with the welding process and testing standards of spiral steel pipes.
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