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14MnMoNbB 钢为调质处理的低合金高强度钢。其屈服强度达70kg/mm~2,抗拉强度达80kg/mm~2。该钢种为北京钢铁研究院及太原钢铁公司共同试制的新钢种。一、14MnMoNbB 钢技术指标1.化学成份%:C Si Mn0.12/0.18 0.15/0.35 1.30/1.80S P Mo Nb≤0.03 ≤0.03 0.45/0.T0 0.02/0.06
14MnMoNbB steel quenched and tempered low alloy high strength steel. The yield strength of 70kg / mm ~ 2, tensile strength of 80kg / mm ~ 2. The steel for the Beijing Iron and Steel Research Institute and Taiyuan Iron and Steel jointly trial production of new steel. First, the 14MnMoNbB steel specifications 1. Chemical composition%: C Si Mn0.12 / 0.18 0.15 / 0.35 1.30 / 1.80S P Mo Nb ≤ 0.03 ≤ 0.03 0.45 / 0.T0 0.02 / 0.06