标准号:23/30475971 DC标准名称:23/30475971 DC英文名称:BS EN 4890 AMD 1. Aerospace series. Steel X4CrNiMo16-5-1. Air melted. Hardened and tempered. Sheets and plates. 0,3 mm ≤ a ≤ 50 mm. 900 MPa ≤ Rm ≤ 1 050 MPa标准状态:发布日期:2025-01-26实施日期:0出版语种:归口单位:ACE/61/-/15提出部门:发布部门: