| 牌 号 及 用 途类别牌号化学成分%CrCSiPS范围ⅠⅡⅠⅡⅠⅡⅠⅡ≥≤微碳铬铁FeCr69C0.0363.0-75.00.0310.030.025FeCr55C360520.031.520.030.040.03FeCr69C0.0663.0-75.00.0610.030.025FeCr55C660520.061.520.040.060.03FeCr69C0.1063.0-75.00.110.030.025FeCr55C1060520.11.520.040.060.03FeCr69C0.1563.0-75.00.1510.030.025FeCr55C1560520.151.520.040.060.03类别牌号化学成分%CrCSiPS范围ⅠⅡⅠⅡⅠⅡⅠⅡ≥≤中碳铬铁FeCr69C1.063.0-75.011.50.030.025FeCr55C100605212.530.040.060.030.05FeCr69C2.063.0-75.021.50.030.025FeCr55C200605222.530.040.060.030.05FeCr69C4.063.0-75.041.50.030.025FeCr55C400605242.530.040.060.030.05低碳铬铁FeCr69C0.2563.0-75.00.251.50.030.025FeCr55C2560520.25230.040.060.030.05FeCr69C0.5063.0-75.00.51.50.030.025FeCr55C5060520.5230.040.060.030.05类别牌号化学成分%CrCSiPSⅠⅡⅠⅡⅠⅡⅠⅡ范围≥≤高碳铬铁：FeCr67C6.062.0-72.0630.030.040.06FeCr55C60060526350.040.060.040.06FeCr67C9.562.0-72.09.530.030.040.06FeCr55C1000605210350.040.060.040.06 |
