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耐浓硝酸不锈钢 X1CrNiSi18-15-4(1.4361)化学成分介绍

发表时间:2020-08-12 10:07作者:上海怡凌

      X1CrNiSi18-15-4,看牌号是一种德标DIN耐硝酸奥氏体不锈钢,材料号为EN 1.4361。执行的是欧洲不锈钢标准:EN 10088-1-2005。适用于间硝法(硝酸镁法)浓硝酸工况中的管道、阀门、法兰、泵类、冷凝器等,在稀硝酸环境下也腐蚀率也非常好。其化学成分和国内常用的C4钢及KY704相近,在具体工况环境下可以实现替换。

化学成分对照表:

材质

牌号

C

Mn

Si

Cr

Ni

P

S

耐硝酸钢

C4

00Cr14Ni14Si4

≤0.03

≤1.0

3.5-4.5

13-15

13-15

≤0.035

≤0.03

KY704

00Cr16Ni14Si4

≤0.03

≤1.0

3.0-5.0

15-17

12.5-15

≤0.035

≤0.03

1.4361

X1CrNiSi18-15-4

≤0.015

≤2.0

3.7-4.5

16.5-18.5

14-16

≤0.025

≤0.01

    从上表中我们可以看出X1CrNiSi18-15-4对特钢厂的冶炼工艺要求非常高,其碳含量接近超纯级,有害元素磷硫的含量要求也非常低。适当提高了铬Cr含量以提高在稀硝酸中的耐腐蚀率。

 X1CrNiSi18-15-4对应的美国材料号为UNS S30600,美国牌号为F46,对应的国内标准牌号是:00Cr17Ni15MoSi4CuN.

   运用范围:化工、化肥、矿山、冶金、国防、石化、医药、化纤、农药、染料、造纸、食品等行业广泛使用。

   焊接性能:有良好的焊接性能,控制好热输出值,高硅有开裂倾向,对焊接工艺有一定要求。可用C4钢焊条进行焊接。

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