Effect of Manganese Content on Structure and Properties of Medium-Carbon Cold-Heading Steel

阮士朋; 赵爱民; 李宝秀; 李世琳

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Effect of Manganese Content on Structure and Properties of Medium-Carbon Cold-Heading Steel

更新时间：2026-01-21

- Effect of Manganese Content on Structure and Properties of Medium-Carbon Cold-Heading Steel
- Special Steel Vol. 38, Issue 4, Pages: 46-48(2017)
- 作者机构：
  
  1. 北京科技大学冶金工程研究院,北京,100083
  2. 邢台钢铁有限责任公司技术中心,邢台,054027
  3. 河北省线材工程技术研究中心,邢台,054027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：08 February 2017，
  
  Online First：20 July 2022，
  
  Published：20 July 2017
- 稿件说明：
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阮士朋, 赵爱民, 李宝秀, et al. Effect of Manganese Content on Structure and Properties of Medium-Carbon Cold-Heading Steel[J]. Special Steel, 2017, 38(4): 46-48.
DOI：

阮士朋, 赵爱民, 李宝秀, et al. Effect of Manganese Content on Structure and Properties of Medium-Carbon Cold-Heading Steel[J]. Special Steel, 2017, 38(4): 46-48. DOI：

摘要

分析和研究了0.75%1.54%Mn对中碳冷镦钢Φ16 mm热轧盘条（/%:0.45C

0.22Si

0.751.54Mn

0.0070.008P

0.0030.004S）组织和性能的影响。盘条热轧的终轧温度为880℃

缓冷。结果表明

锰含量由0.75%增加到1.54%

盘条抗拉强度由661 MPa增加到821 MPa

增加了160 MPa;钢的组织中铁素体比例由49%~53%降低到9%~13%

珠光体含量显著增加

且珠光体片层间距由0.5μm降低到0.25.μm;淬透性能得到显著提高

淬透性系数由3.19 mm增加到8.81 mm。

Abstract

The effect of 0. 75% ~ 1. 54% Mn on structure and properties of 4)16 mm hot-rolled coil of medium-carbon cold-heading steel (/% : 0.45C

0. 22Si

0. 75 ~ 1. 54Mn

0. 007 ~ 0. 008P

0. 003 ~ 0.004S) has been analyzed and studied. The end-rolling temperature of hot-rolling coil is 880 X.

slow-cooling. Results show that with increasing manganese in steel from 0. 75% to 1. 54%

the tensile strength of coil increases from 661 MPa to 821 MPa

i. e. that increases by 160 MPa； the percentage of ferrite in structure of steel decreases from 49% ~53% to 9% 〜13%

the pearlite content in structure increases obviously and the pearlite lamellar spacing reduces from 0.5 μm to 0.25μm ； and the hardenability of steel improves significantly

that is the hardenability coefficient o£ steel increases from 3. 19 mm to 8. 81 mm.

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