The result showed the difference of mechanical properties of HSLA steel results from the troostite and banded structure which are closely relative to mamgamese content.

• 结果表明屈氏体组织以及带状组织是造成低合金钢板强度、塑性差异主要原因，而屈氏体组织、带状组织的产生和锰含量有很大关系。