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4120简介

牌号 4120
美国UNS G41200
对应标准 SAE J 404-2000
SAE 合金钢化学成分
Chemical Compositions of SAE Alloy Steels
归类 合金钢
4120 化学元素成分含量(%)
成分 C Si Mn P S Cr Mo
最小值 0.18 0.15 0.9 - - 0.4 0.13
最大值 0.23 0.35 1.2 0.03 0.04 0.6 0.2
注:The analysis of the following elements shall be reported regardless of whether they are specified: Aluminum, Titanium, Niobium (Columbium), Vanadium. If the analysis of any of these elements is less than 0.008%, it may be reported as <0.008%. 碳当量计算
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