14Cr1Mo碳元素含量偏高; 强度级别偏高14Cr1Mo490~660MPa;P11415MPa; 我相于12Cr1MoV更些 知看 ASTM A335 Gr.P11 该材料:1.25Cr-0.5Mo-SiPNo.4-1组别 化:C:0.05~0.15, Mn:0.30~0.60, P:0.025, S:0.025, Si: 0.50~1.00, Cr:1.00~1.50, Mo: 0.44~0.65 与标14Cr1Mo差定差异参照面网址进行考虑