Mechanical Properties and Chemical Composition of Seamless Steel Pipe, ASTM A192 Standard
Hit：392026-03-31 10:19:52
Mechanical Properties and Chemical Composition of Seamless Steel Pipe, ASTM A192 Standard
ASTM A192 is a standard for seamless carbon steel tubes used in high-pressure boilers, widely applied in industries such as power and petrochemical. Below are its typical mechanical properties and chemical composition requirements:
Mechanical properties
Tensile Strength: ≥ 415 MPa (60,000 psi)
Yield Strength: ≥ 240 MPa (35,000 psi)
Elongation (2 in or 50 mm): ≥ 30%
Hardness: Not a mandatory requirement, but it is generally recommended that the Brinell hardness (HB) does not exceed 170
These properties ensure that the steel pipe maintains good strength and plasticity under high-temperature and high-pressure conditions, making it suitable for cold drawing or heat treatment processes.
Chemical Composition (Mass Fraction, %)
Element Content (maximum value, unless minimum is specified)
Carbon (C) 0.06–0.22
Manganese (Mn) 0.27–0.93
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.035
Silicon (Si) ≥ 0.10 (for deoxidation)
Copper (Cu) ≤ 0.50
Nickel (Ni) ≤ 0.40
Chromium (Cr) ≤ 0.30
Molybdenum (Mo) ≤ 0.15
Vanadium (V) ≤ 0.08
The steel pipe is typically delivered in normalized, annealed, or controlled cooling condition to ensure uniform microstructure and stable mechanical properties.
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