AECMA PREN 3357-1998 航空航天系列.真空感应熔炼和消耗电极再熔炼固溶处理和沉淀处理FE-PM1503(X3CrNiMoAl13-8-2)钢 机加工棒材a或直径D小于或等于150 mm 1200MPa小于或等于Rm小于或等于1400MPa
Aerospace Series Steel FE-PM1503 (X3CrNiMoAI 13-8-2) Vacuum Induction Melted and Consumable Electrode Remelted Solution Treated and Precipitation Treated Bar for Machining a or D Less Than or Equal to 150 mm 1 200 MPa Less Than or Equal to Rm Less Than o