The manufacturing method of bainitic steels containing manganese is different from that of traditional air-cooled bainitic steels which can only be obtained by adding expensive molybdenum, tungsten etc.

      Moreover, compared with bainitic steel containing molybdenum, those containing manganese have such many advantages as higher air-cooling hardenability, lower bainite transformation temperature(Bs), good combination of strength with toughness, simple alloying and low cost.

      Professor Hongsheng Fang and his research team have developed medium-carbon, medium high carbon bainitic steels containing manganese or Mn-B with different properties and applications.