Progress in Grades and Refining Technology of Ultra Purity Ferritic Stainless Steels

游香米; 姜周华; 李花兵

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Progress in Grades and Refining Technology of Ultra Purity Ferritic Stainless Steels

更新时间：2026-01-21

- Progress in Grades and Refining Technology of Ultra Purity Ferritic Stainless Steels
- Special Steel Vol. 27, Issue 5, Pages: 40-42(2006)
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- Received：19 April 2006，
  
  Online First：20 April 2023，
  
  Published：20 April 2006
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游香米, 姜周华, 李花兵. Progress in Grades and Refining Technology of Ultra Purity Ferritic Stainless Steels[J]. Special Steel, 2006, 27(5): 40-42.
DOI：

游香米, 姜周华, 李花兵. Progress in Grades and Refining Technology of Ultra Purity Ferritic Stainless Steels[J]. Special Steel, 2006, 27(5): 40-42. DOI：

摘要

超纯铁素体不锈钢中(C+N)含量≤150×10- °

其耐蚀性、焊接性能、韧性等显著高于普通铁素体不锈钢。介绍了新开发的409改进型、429及改进型、444及改进型超纯铁素体不锈钢的钢种、成分和性能；采用三步法工艺冶炼18Cr超纯铁素体不锈钢，用SS-VOD 精炼时，钢中[C+N]≤70×10-⁶ ;VOD-PB 精炼时， [C+N] 为80×10-⁶ ;VCR 精炼时，[C+N] 为(80~100)×10-⁶。

Abstract

The(C+N)content in ultra purity ferritic stainless steels is ≤150×10-⁶

its corrosion resistance

weldability and toughness are obviously higher than that of common ferritic stainless steels. The grade

chemical com- position and properties of new developed ultra purity fernitic stainless steels including modified 409

429 and modi- fied

444 and modified steels are presented; and by using 3- step steel making process to produce 18Cr ultra purity ferritic stainless steels

with SS-VOD refining

the(carbon + nitrogen)content in steel-[C+N

]

is≤70×10

-6

with VOD-PB refining

[C+N

]

is 80×10

-6

and with VCR refining

[C+N

]

is(80～100)×10

⁶.

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