Seamless steel pipe information: American standard ASTM A333 Gr4 seamless steel pipe chemical composition and mechanical properties
Hit：142026-10-21 14:55:30
Seamless steel pipe information: American standard ASTM A333 Gr4 seamless steel pipe chemical composition and mechanical properties
Low temperature impact: The minimum operating temperature for A333 Gr.4 is generally -100 ℃ (-150 ° F), and a Charpy V-notch impact test is required. The test temperature should be lower than or equal to the minimum design metal temperature to ensure low temperature brittle fracture resistance.
Heat treatment: Usually delivered in the state of normalizing or normalizing and tempering.
Application scenarios: Suitable for low-temperature pressure vessel pipelines, low-temperature heat exchanger pipelines, liquefied gas transportation and other working conditions.
Chemical composition (%)
table
Element requirements
Carbon C ≤ 0.12
Manganese Mn 0.50~1.05
Phosphorus P ≤ 0.025
Sulfur S ≤ 0.025
Silicon Si 0.08~0.37
Nickel Ni ≤ 0.40
mechanical properties
table
Project requirements
Tensile strength ≥ 415 MPa (minimum)
Yield strength ≥ 205 MPa (minimum)
Elongation (longitudinal) ≥ 30% (with a gauge length of 2 inches or 50mm, basic minimum elongation)
Elongation rate (transverse) ≥ 20%
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