Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel

耿明山; 王新华; 张炯明; 肖寄光; 何矿年

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Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel

更新时间：2026-01-21

- Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel
- Special Steel Vol. 29, Issue 6, Pages: 41-43(2008)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 韶关钢铁集团有限公司,韶关,512123
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 May 2008，
  
  Online First：08 December 2022，
  
  Published：08 December 2008
- 稿件说明：
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耿明山, 王新华, 张炯明, et al. Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel[J]. Special Steel, 2008, 29(6): 41-43.
DOI：

耿明山, 王新华, 张炯明, et al. Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel[J]. Special Steel, 2008, 29(6): 41-43. DOI：

摘要

通过扫描电子显微镜和X-射线能谱分析研究了C-Mn钢(%:0.13～0.20C、1.00～1.60Mn、0.09Cu、0.07As、0.05Sn)连铸坯热轧的25 mm板表面微裂纹。结果表明

热轧板表面裂纹两侧存在薄的氧化脱碳层

裂纹沿晶界开裂

裂纹附近的基体处存在Cu、As、Sn低熔点富集相。实际生产中当钢中的Cu、As、Sn含量分别控制≤0.02%

可基本消除热轧板表面网状裂纹。

Abstract

The surface micro cracks of 25 mm hot rolled plate rolled by cast slab of C-Mn steel(0.13～0.20C

1.00~1.60Mn

0.09Cu

0.07As

0.05Sn)have been studied by scanning electron microscope and X-ray energy dispersive spectrometer.Results showed that there was thin oxidizing-decarburizing layer at both sides of surface crack

the crack fractured along grain-boundary and the low-melting-point Cu-As-Sn enriched phases existed at steel matrix near crack.In production practice

as Cu

Sn content in steel was respectively controlled ≤0.02%

the surface net cracks of hot rolled plate were basically eliminated.

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