The invention discloses high-nitrogen steel with high and low temperature toughness. The high-nitrogen steel is prepared from chemical components in percentage by mass: 21.2%-21.8% of Cr, 16.8%-17.5% of Mn, 0.5%-0.85% of Mo, 1.5%-2.0% of Ni, 0.01%-0.1% of Si, 0.02%-0.05% of C, 0.5%-1.0% of N, 0.001%-0.003% of S, 0.016%-0.02% of P and the balance of Fe and inevitable impurities. The nickel content is reduced to a certain extent, and meanwhile, high low-temperature toughness is achieved.
本发明公开了一种具有高低温韧性的高氮钢,其化学成分的质量百分比为Cr 21.2~21.8%、Mn 16.8~17.5%、Mo 0.5~0.85%、Ni 1.5~2.0%、Si 0.01~0.1%、C 0.02~0.05%、N 0.5~1.0%、S 0.001~0.003%、P 0.016~0.02%,余量为Fe和不可避免的杂质。本发明在一定程度上降低镍含量的同时具有高的低温韧性。
High-nitrogen steel with high and low temperature toughness and preparation method thereof
一种具有高低温韧性的高氮钢及其制备方法
2021-11-26
Patent
Electronic Resource
Chinese
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