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纭� Si锛�0.20锝�0.40(鍏佽ū鍋忓樊:卤0.05)
閷� Mn锛�0.20锝�0.40(鍏佽ū鍋忓樊:+0.04)
纭� S 锛氣墹0.030 銆€銆€纾� P 锛氣墹0.030
閴� Cr锛�3.75锝�5.00(鍏佽ū鍋忓樊:卤0.05)
閹� Ni锛氬厑瑷辨畼浣欏惈閲忊墹0.30
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閲� V 锛�1.80锝�2.40(鍏佽ū鍋忓樊:卤0.05)
閴� Mo锛�0.50锝�1.25(鍏佽ū鍋忓樊:灏哄鈮�6,卤0.05;灏哄锛�6,卤0.10)
閹� W 锛�17.50锝�19.00(鍏佽ū鍋忓樊:灏哄鈮�10,卤0.10;灏哄锛�10,卤0.20)
閳� Co锛�7.00锝�9.50(鍏佽ū鍋忓樊:卤0.15)
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