ASTM A333 Gr.1 Gr.6 Gr.8 Seamless low temperature pipe
ASTM A333 is a standard specification for seamless and welded steel pipes suitable for cryogenic services, which includes different grades of steel pipes such as Gr.1, Gr.6 and Gr.8. These steel pipes are mainly used in piping systems in cryogenic environments and have excellent low-temperature toughness and mechanical properties.
ASTM A333 Chemical Composition (%):
A333 | Chemical Components (%) | ||||
Grade | C | Si | Mn | P | S |
GR.1 | 0.30max | 0.10max | 0.40-1.06 | 0.025max | 0.025max |
GR.6 | 0.30max | 0.10max | 0.29-1.06 | 0.025max | 0.025max |
GR.8 | 0.13max | 0.50max | 4.00-5.00 | 0.025max | 0.025max |
ASTM A333 Mechanical properties:
A333 | Grade 1 | Grade 6 | Grade 8 |
Tensile strength, min | 380 MPa | 415 MPa | 450 MPa |
Yield strength, min | 205 MPa | 240 MPa | 240 MPa |
Elongation, min | 30% | 30% | 35% |
Selecting the appropriate grade of steel pipe requires consideration of specific operating conditions and requirements.
