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1 2 0ＣｒＭｎＴｉＨ钢的理化性能要求及试制工艺兴澄钢铁公司用连铸工艺进行试生产齿轮钢2 0ＣｒＭｎＴｉＨ取得良好的效果。用户对齿轮钢2 0ＣｒＭｎＴｉＨ的淬透性要求为Ｊ936～ 4 2 ,Ｊ1535～ 2 7,化学成分要求见表 1。表 1 2 0ＣｒＭｎＴｉＨ钢的化学成分要求 %Ｔａ
1 2 0CrMnTiH steel physical and chemical performance requirements and trial production process Xing Cheng Iron and Steel Company with a continuous casting process for trial production of gear steel 20CrMnTiH achieved good results. Users of gear steel 20CrMnTiH hardenability requirements for the J936 ~ 4 2, J1535 ~ 2 7, chemical composition requirements in Table 1. Table 1 2 0CrMnTiH steel chemical composition requirements% Ta