国内阀门材料常用技术标准 碳素钢锻件技术条件、力学性能
牌号 |
抗拉强度σb/ MPa |
屈服强度σs/ MPa |
伸长率δ/ % |
断面收缩率ψ/ % |
冲击吸引功 Ak/J |
硬度/ HB |
A105 | ≥485 | ≥250 | ≥22 | ≥30 | — | ≤187 |
25 | ≥450 | ≥275 | ≥23 | ≥50 | 71 | ≤170 |
This region has not yet joined our new website. You will now continue to the existing site for 网站名称