牌号:H95
化学成分:
C- 0.25 to 0.45
Si - 0.10 to 0.35
Mn - 0.2 to 0.7
Ni - 2.7 to 3.3
Cr - 0.7 to 1.2
Mo - 0.4 to 0.7
V - 0.25 (max)
S - 0.015 (max)
P - 0.015 (max)
机械性能要求:
"拉伸试验0.2%耐力减少,面积伸长率5.65√So","冲击功1050MPa 1050 MPa (≥) 35% (≥) 10% (≥)"
"冲击试验(夏比冲击试验)",50 Joules (≥) at -40°C ±2 °C 50 50焦耳,零下40度+-2 度试验