低碳硼-钼钢经过锻造及正火处理后,抗拉强度可以达到60千克/毫米~2以上,屈服强度可达到48千克/毫米~2以上,比不含合金的低碳结构钢的机械强度超过一倍,同时仍保持有较好的展性及韧性.硼-钼钢有良好的焊接性能,可建议作高强度低合金结构钢应用.硼促进0.50%钼钢机械强度增加的原因,是在正火处理后改变了金相组织中的珠光体与铁素体的分布情况.如金相组织中含有细致分散的珠光体及针状铁素体,可以得到 Low-carbon boron-molybdenum steel after forging and normalizing, the tensile strength can reach 60 kg / mm ~ 2 above, yield strength can reach 48 kg / mm ~ 2, than the low alloy steel machinery Strength more than doubled, while still maintaining good malleability and toughness .Bo - molybdenum steel has good welding performance, can be recommended for high strength low alloy structural steel.Bo promote the increase of 0.50% Mo steel mechanical strength, Is changed after the normalizing treatment of the microstructure of pearlite and ferrite distribution, such as microstructure containing finely dispersed pearlite and acicular ferrite can be obtained