请教一下39nicrmo3是什么材料，国内可以用什么材料来代替？

请教一下39nicrmo3是什么材料，国内可以用什么材料来代替？

这是意大利的一种合金钢。现在它所有的标准都被ＤＩＮ　ＥＮ　标准替代了，可参考下列信息。
1）UNI 8787 Hot rolled finished products of steel for quenching and tempering - Plates sheets, strips, coils and wide flats for mechanical engineering purposes - Qualities, requirements and tests. Withdrawn and replaced by EN 10083-1:1993
2）UNI 7874 Forged unalloyed or special-alloyed, quenched and tempered or normalized steel flat products。Replaced by EN 10083-1.
3）UNI 6403 Low alloy steel; Samless steel tubes for use in road vehicles and other specific purposes.Withdrawn standard. This grade is a special alloy steel intended to be hardened and tempered, manufactured as a killed steel.
至于在国内相当于什么材料，现在还未找到，不好意思。