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本文简要阐述了Ｍｎ－Ｂ系空冷贝氏体钢系列及产品近年的新发展。材料以普通元素Ｍｎ和微量Ｂ合金化，较Ｍｏ－Ｂ系贝氏体钢成本显著低廉，可空冷自硬，强韧性好，应用面广，钢厂可直接出产品，现已可生产耐磨钢球、耐磨铸钢、离心铸管、塑料模具、汽车前轴、各种轴类零件、叉车货叉、板弹簧、圆弹簧、标准件、煤矿综采机刮板和截齿等。部分贝氏体钢优质产品已经进入大规模生产。该系列材料可对中小钢厂及有炼钢设备的机械厂略加技术改造，即可迅速进入贝氏体钢产品生产。
This article briefly describes the Mn-B series of air-cooled bainitic steel products and new developments in recent years. Material ordinary elemental Mn and trace B alloy, compared with Mo-B series bainitic steel significantly lower cost, self-hardening air, good toughness, wide range of applications, the steel can be directly products, is now able to produce wear Steel ball, wear-resistant cast steel, centrifugal casting pipe, plastic mold, automobile front axle, various shaft parts, forklift fork, leaf spring, round spring, standard parts, coal mining machine scraper and pick. Some bainitic steel quality products have entered mass production. The series of materials can be small and medium-sized steel mills and steel plant machinery plant a slight technological transformation, you can quickly enter the production of bainitic steel products.