Q550NHB冶炼方法Q550NHB技术标准规范
一、牌号：Q550NHB二、Q550NHB交货状态：热轧、控轧、正火三、Q550NHB执行标准：GBT 4171-2008四、Q550NHB化学成分、熔炼分析CSiMnPSNiCrMoCuNbVTiAltZr≤0.16≤0.65≤2≤0.025≤0.030.12~0.650.3~1.25≤0.30.2~0.550.015~0.060.02~0.120.02~0.1≥0.02≤0.15成分备注：为…
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