化學(xué)成分
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標(biāo)準(zhǔn):
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牌號(hào): 446
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具體成分:s: ≤0.030
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C: ≤0.02CR: 23.0~27.0
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Sl: ≤1.00Ni: ≤0.75
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MN: ≤1.50MO:
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P: ≤0.040N: ≤0.25
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其他: