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ASTM A105-A105M-2021化学成分：
|
碳 C |
硅 Si |
锰 Mn |
硫 S |
磷P |
铬 Cr |
镍 Ni |
钼Mo |
铜 Cu |
钒V |
|
≤0.35 |
0.10-0.35 |
0.6-1.05 |
≤0.040 |
≤0.035 |
≤0.3 |
≤0.4 |
≤0.12 |
≤0.4 |
≤0.08 |
ASTM A105-A105M-2021力学性能：
|
抗拉强度σb |
屈服强度σs |
伸长率δ5 (%) |
断面收缩率ψ (%) |
硬度HV |
|
≥485Mpa |
≥250Mpa |
≥22% |
≥30% |
≤HB197 |
Note: In the pipeline system, generally ASTM A105-A105M-2021 can replace 20#, but 20# cannot completely replace A105, because the strength difference is still large. However, the stress corrosion cracking (SCC) resistance of A105 is slightly worse than that of 20#.
ASTM A105-A105M 2021 is ASTM Standard number, ASTMA105/A105M steel forgings for pipe elements, A stands for ordinary carbon structural steel. It is a special steel and is a cold forged steel. A105 is a mild steel forging, similar to 20# steel.
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