CORROSION-RESISTANCE OF CAST STEEL IN HYDROXYLAMINE SULFATE-SOLUTION

被引：0

作者：

HOLTZER, M ^{[1
]}

PIWOWARSKI, S ^{[1
]}

机构：

[1] NITROGEN WORKS,PL-30301 TARNOW,POLAND

来源：

WERKSTOFFE UND KORROSION-MATERIALS AND CORROSION | 1994年 / 45卷 / 11期

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In hydroxylamine sulphate production processes fittings made from cast steel 18Cr-10Ni failed after short working periods due to inadequate corrosion resistance. By means of weight loss measurements different austenitic and austenitic-ferritic grades of cast steel with higher amount of alloying elements were tested in cold hydroxylamine sulphate solution before hydrolysis and in hot solution after second reactor. Cast steel types 20Cr-25Ni and 25Cr-6Ni have shown the highest corrosion resistance. The laboratory results were verified by industrial tests where gate valves made from cast steel type 20Cr-25Ni after 4 years of working period are still in a good state.

引用

页码：604 / 607

页数：4