通用阀门材料 阀门常用碳素钢材料的力学性能
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 |
|
锻件 | A105 | ≥485 | ≥250 | ≥22 | ≥30 | — | ≤187 |
25 | ≥450 | ≥275 | ≥23 | ≥50 | 71 | ≤170 | |
25Mn | ≥490 | ≥295 | ≥22 | ≥50 | 71 | ≤207 | |
铸件 | WCA | 415-585 | ≥205 | ≥24 | ≥35 | ||
WCB | 485-655 | ≥250 | ≥22 | ≥35 | |||
WCC | 485-655 | ≥275 | ≥22 | ≥35 |
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