化學成分
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標準:
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牌號: XM-27
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具體成分:s: ≤0.020
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C: ≤0.01CR: 25.0~27.0
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Sl: ≤1.00Ni: ≤0.50
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MN: ≤0.40MO: 0.75~1.50
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P: ≤0.020N: ≤0.015
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其他: Cu≤0.20 Nb0.50~0.20 Ni+Cu≤0.50