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STAINLESS STEEL MATERIAL HAVING EXCELLENT SLAG SPOT OCCURRENCE PREVENTION PERFORMANCE, WELDED STRUC 发明申请

2023-12-17 3810 1204K 0

专利信息

申请日期 2025-06-27 申请号 WOJP18018480
公开(公告)号 WO2019082427A1 公开(公告)日 2019-05-02
公开国别 WO 申请人省市代码 全国
申请人 NISSHIN STEEL CO LTD
简介 This stainless steel material can stably and markedly suppress the occurrence of slag spots during arc welding, the stainless steel material having a chemical composition that contains, in terms of mass%, 0.005-0.100% of C, 0.10-3.00% of Si, 0.10-6.50% of Mn, 0.001-0.050% of P, 0.0001-0.0200% of S, 0-20.00% of Ni, 10.50-26.00% of Cr, 0.005-0.200% of N, 0.0030-0.0150% of O and, if necessary, prescribed quantities of Mo, Cu, Nb, V, Zr, W, Co, B, Ti, Al, Ca, Mg, REM (rare earth elements excluding Y) and Y, with the remainder comprising Fe and unavoidable impurities, with the average CaO/(SiO2+MnO+CaO) mass ratio being 0.40 or less and the average CaO/MnO mass ratio being 15.0 in oxide-based inclusions observed in the steel structure.


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