34712| 23
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304系列不銹鋼硬度能達到HRC40嗎,? |
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點評
用4系的,很硬
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點評
呵呵,幾乎沒碳的鋼材,,不曉得怎么形成馬氏體,,固溶熱處理是提高塑性和韌性的,對硬度是不升反降,,這種答案只能呵呵了
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