专利名称：Martensitic stainless steel发明人：松尾 大輔,富尾 悠索,高部 秀樹申请号：JP2019509937申请日：20180327
公开号：JPWO2018181404A1公开日：20191212
专利附图：
摘要：Martensite stainless steelMass%C: 0.030% or lessSi: 1.00% or lessMn: 1.00% orlessP: 0.030% or lessS: 0.005% or lessAl: 0.0010 to 0.0100%N: 0.0500% or lessNi: 5.00-6.50%Cr: 10.00 to 13.40%Copper: 1.80 to 3.50%Mo: 1.00 to 4.00%V: 0.01 to 1.00%Ti: 0.050to 0.300%Co: 0.300% or lessAndThe remainder consists of Fe and impurities.The chemicalcomposition satisfying the equations (1) and (2) andYield strength of 724 to 860 MPaItcomprises an organization having a martensite of 80% or more in volume ratio.The size ofeach intermetallic compound and each Cr oxide in the tissue is 5.0. Mu.m2 or less, and thetotal area ratio of the intermetallic compound and the Cr oxide is 3.0% or less.11.5 ≦ Cr +2Mo + 2cu-1.5ni ≦ 14.3 (1) Ti \\/ C ≧ 7.5 (2)
申请人：日本製鉄株式会社
地址：東京都千代田区丸の内二丁目６番１号
国籍：JP
代理人：アセンド特許業務法人
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