Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application

李立; 季灯平; 马振宇; 严道聪; 胡梅青; 王贞应; 谢东西

doi:10.20057/j.1003-8620.2022-00005

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Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application

更新时间：2026-01-21

- Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application
- Special Steel Vol. 44, Issue 2, Pages: 37-42(2023)
- 作者机构：
  
  1. 浙江青山钢铁有限公司,丽水,323900
  2. 瑞浦科技特种钢研究院,丽水,323900
- 作者简介：
- 基金信息：
- DOI：10.20057/j.1003-8620.2022-00005
  CLC：
- Received：08 September 2022，
  
  Online First：27 March 2023，
  
  Published：27 March 2023
- 稿件说明：
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李立, 季灯平, 马振宇, et al. Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application[J]. Special Steel, 2023, 44(2): 37-42.
DOI：

李立, 季灯平, 马振宇, et al. Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application[J]. Special Steel, 2023, 44(2): 37-42. DOI： 10.20057/j.1003-8620.2022-00005.

摘要

通过对焊接用双相不锈钢ER2209线材生产实践过程中的冶炼、轧制、固溶及酸洗工艺的研究，结果表明：最佳的热加工温度为1000～1050℃

可有效避免α相析出导致的轧制开裂；热处理温度为1050~1100℃

材料的强度较低，塑性较高，冷拉拔性能优异；采用(H

+HF)溶液预处理及(HNO

+HF)混酸洗的工艺进行酸洗，线材表面质量优异，无酸洗晶间腐蚀。

Abstract

The process of smelting

rolling

solution and pickling of duplex stainless steel ER2209 wire rods for butt welding was studied. The results show that the optimum hot working temperature was 1000- 1050 ℃

which can effectively avoid the rolling cracks caused by σ phase precipitation. The heat treatment temperature was 1050- 1100 ℃

the strength of the material was low

the plasticity was high

and the cold drawing performance is excellent. The process of(H

+HF) solution pretreatment and (HNO

+HF)mixed pickling was used for pickling. The wire surface quality was excellent with- out pickling intercrystalline corrosion.

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