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X12CrNiMoV12-3(1.4939)高溫高強(qiáng)度鋼化學(xué)成分
碳C:0.08-0.15
硅Si≤0.50
錳Mn:0.40-0.90
磷P≤0.025
硫S≤0.015
鉻Cr:11.0-12.50
鎳Ni:2.0-3.0
鉬Mo:1.50-2.0
氮N:0.020-0.040