AECMA PREN 3529-1997 航空航天系列.钢 FE-PM2701(X2NiCoMo18-8-5)真空感应熔炼和电弧再熔炼固溶处理和沉淀处理钢 锻件 a 或 直径D小于或等于150 mm 1750 MPa小于或等于Rm小于或等于2000 MPa
Aerospace Series Steel FE-PM2701 (X2NiCoMo18-8-5) Vacuum Induction Melted and Vacuum Arc Remelted Solution Treated and Precipitation Hardened Forgings a or D Less Than or Equal to 150 mm 1 750 MPa Less Than or Equal to Rm Less Than or Equal to 2 000 MPa