分享好友 知识库首页 频道列表

Hardened martensitic steel having a low content of cobalt, a method of producing parts from stereng

2025-06-18 12:192370下载
文件类型：PDF文档
文件大小：187K
A steel characterized in that its composition is percentages by weight : C=0.18-0.30% Co=1.5-4% Cr=2-5% Al=1-2% Mo+W/2=1-4% V=traces-0.3% Nb=traces-0.1% B=traces-30 ppm Ni=11-16% where Ni≧7+3.5 Al Si=traces-1.0% Mn=traces-2.0% Ca=traces-20 ppm Rare earths=traces-100 ppm if N≰10 ppm, Ti+Zr/2=traces-100 ppm where Ti+Zr/2≰10 N if 10 ppm
反对 0
举报 0
收藏 0
打赏 0
评论 0