09MnNiDR化学成分
化学元素(质量分数)/%
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牌号
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C
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Si
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Mn
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Ni
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V
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Mb
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Alt
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P
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S
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16MnDR
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≤0.20
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0.15-0.5
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1.20-1.6
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—
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—
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—
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≥0.02
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≤0.025
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≤0.015
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15MnNiDR
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≤0.18
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0.15-0.5
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1.20-1.6
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0.20-0.6
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≤0.06
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≥0.02
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≤0.025
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≤0.015
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09MnNiDR
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≤0.12
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0.15-0.5
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1.20-1.6
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0.30-0.8
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—
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≤0.04
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≥0.02
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≤0.020
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≤0.015
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09MnNiDR力学性能
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力学性能
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钢板公称厚度/mm
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拉伸试验
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冲击试验
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180°弯曲试验 弯曲直径(b≥35mm)
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抗拉强度R/(N/㎡)
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屈服强度R/(N/㎡)
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伸长率A/%
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温度/℃
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冲击吸收能量KV2/J
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不小于
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不小于
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16MnDR
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6-16
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490-620
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315
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21
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—40
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34
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d=2a
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>16-36
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470-600
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295
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d=3a
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>36-60
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460-590
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285
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>60-100
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450-580
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275
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—30
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34
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>100-120
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440-570
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265
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15MnNiDR
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6-16
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490-620
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325
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20
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—45
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34
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d=3a
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>16-36
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480-610
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315
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>36-60
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470-600
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305
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09MnNiDR
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6-16
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440-570
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300
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23
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—70
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34
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d=3a
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>16-36
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430-560
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280
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>36-60
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430-560
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270
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>60-120
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420-550
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260
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