| 牌号 | X40CrSiMo10-2 |
|---|---|
| 1.4731 | |
| 对应标准 | NF EN 10090-1998
阀门用钢和合金 Valve steels and alloys for internal combustion engines |
| 归类 | 马氏体不锈钢 |
| 密度 | 7.7 g/cm3 |
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高温抗拉强度
Designation Reference heat
treatment
conditionTensile strength at:
N/mm2 ①Name Number 500°C 550°C 600°C 650°C 700°C 750°C 800°C X40CrSiMo10-2 1.4731 +QT 550 420 300 220 130 ② - - ① The values given here are situated near the lower limit of the scatter range.
② This grade should not be used at 700°C and above.
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高温屈服强度
Designation Reference heat
treatment
condition0.2% proof strength at:
N/mm2 ①Name Number 500°C 550°C 600°C 650°C 700°C 750°C 800°C X40CrSiMo10-2 1.4731 +QT 450 350 260 180 100 ② - - ① The values given here are situated near the lower limit of the scatter range.
② This grade should not be used at 700°C and above.
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蠕变强度
Designation Creep strength after 1000 h at:
N/mm2 ①Name Number 500°C 650°C 725°C 800°C X40CrSiMo10-2 1.4731 210 40 - - ① Mean values of scatter range determined until now.
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热处理指南
Designation Hot forming
℃Soft
annealing
℃Quenching or
solution heat
treatment
℃Quenching
agentTempering or
artificial ageing
℃Name Number X40CrSiMo10-2 1.4731 1100 to 900 780 to 820
a or w1000 to 1050 o 720 to 820/
a or w◎ a=air; o=oil; w=water
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物理性能
静态弹性模量 20°C与各温度间热膨胀系数 热导率 比热容 磁性 20°C 100°C 300°C 500°C 700°C 20°C 20°C 有 KN/mm2 10-6 K-1 W/m.K J/kg.K 210 10.9 11.2 11.5 11.8 21 500
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