Development of Yield Strength 750 MPa HSLA Steel for Container

殷胜; 朱红丹

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Development of Yield Strength 750 MPa HSLA Steel for Container

更新时间：2026-01-21

- Development of Yield Strength 750 MPa HSLA Steel for Container
- Special Steel Vol. 40, Issue 1, Pages: 16-18(2019)
- 作者机构：
  
  1. 西北工业大学材料学院,西安,710072
  2. 宝钢股份梅钢公司
  3. 技术中心热轧产品研究所,
  4. 制造管理部检测中心,南京,210039
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：02 August 2018，
  
  Online First：23 May 2022，
  
  Published：23 May 2019
- 稿件说明：
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殷胜, 朱红丹. Development of Yield Strength 750 MPa HSLA Steel for Container[J]. Special Steel, 2019, 40(1): 16-18.
DOI：

殷胜, 朱红丹. Development of Yield Strength 750 MPa HSLA Steel for Container[J]. Special Steel, 2019, 40(1): 16-18. DOI：

摘要

设计和开发了屈服强度750 MPa低合金高强度集装箱用钢(/%:0.06～0.09C

0.25～0.35Si

1.60～1.80Mn

≤0.015P

≤0.003S

0.10～0.20Mo

0.05～0.06Nb

0.09～0.11Ti

≥0.0015Ca

≥0.015Alt)。试验钢的工艺流程为260 t BOF-LF-RH-230 mm板坯连铸-热轧成2～6 mm板。通过Nb-Ti复合微合金化和Ca处理

控制精轧结束温度840～880℃

层流冷却速度≥60℃/s

卷取520～580℃

热轧钢卷的冷却速度≤10℃/h等工艺措施

热轧带钢具有良好的表面质量

组织为细晶铁素体+Nb-Ti碳氮化物

力学性能为上屈服强度760～790 MPa

抗拉强度860～910 MPa

伸长率21%～25%

满足用户要求。

Abstract

The yield strength 750 MPa high strength low alloy (HSLA) steel for container (/% : 0.06 ~0.09C

0.25 ~0.35Si

1.60 ~1.80Mn

≤0.015P

≤0.003S

0.10 ~0.20Mo

0.05 ~0.06Nb

0.09 ~0.llTi

≥ 0.0015Ca

≥0.015Alt) has been designed and developed. The process flowsheet for tested steel is 260 t BOF-LF-RH-230 mm slab casting-hot-rolling to 2 ~ 6 mm plate. With the process measures including Nb-Ti compound microalloying and Ca treatment

controlling finishing rolling temperature 840 -880 ℃

lamina flow cooling rate ≥ 60℃ /S

coiling at 520 -580℃

and hot-rolled coil cooling rate ≤ 10 °C/h， the hot-rolled strip coil has better surface quality

its structure is fine grain ferrite + Nb-Ti carbonitride

and the mechanical properties of strip are upper yield strength 760 〜790 MPa

tensile strength 860 -910 MPa

and elongation 21% ~25% to meet the requirement of user.

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