结果表明，含锰4% ~ 5%的硼白口铸铁具有较好的淬透性和淬硬性。

The results show that good hardenability and the ability of harden quenching appear when Mn content is about 4% ~ 5%.

youdao

结果表明，含锰4% ~ 5%的硼白口铸铁具有较好的淬透性和淬硬性。

The results show that good hardenability and the ability of harden quenching appear when Mn content is about 4% ~ 5%.

youdao