Home Journals Articles Updates About
CN
image
收藏切换
Effects of Carbon Contents and Process Regimes on the Microstructure and Properties of Low-alloy Ultra-high Strength Hot-rolled Steel Plate
收藏切换
Chengqian SUN1, 2, Yi DONG1, 2, Xiaoguang SHI1, 2, Junxiong WANG1, 2, Xin XU1, 2, Li LIN1, 2, Chufei HAN1, 2, Zhi LI1, 2
Angang Technology | 2026, (4) : 38 - 45
Less
收藏切换
Angang Technology | 2026, (4): 38-45
• Research and Development •
Effects of Carbon Contents and Process Regimes on the Microstructure and Properties of Low-alloy Ultra-high Strength Hot-rolled Steel Plate
Full
Chengqian SUN1, 2, Yi DONG1, 2, Xiaoguang SHI1, 2, Junxiong WANG1, 2, Xin XU1, 2, Li LIN1, 2, Chufei HAN1, 2, Zhi LI1, 2
Affiliations
  • 1.State Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan 114009, Liaoning, China
  • 2.Ansteel Iron & Steel Research Institutes, Anshan 114009, Liaoning, China
doi: 10.3969/j.issn.1006-4613.2026.04.005
Outline
收藏切换

Low-alloy ultra-high strength steel was used as the raw material to investigate the influence of different carbon contents and process regimes on the microstructure and properties of low-alloy ultra-high strength steel. The results showed that when the coiling temperature was 680 ℃, the microstructure consisted of ferrite and pearlite. When the coiling temperature is 600° C, the microstructure comprised ferrite, pearlite, and bainite.When the coiling temperature was reduced to 450 ℃, the microstructure transformed into bainite. After high-temperature heat treatment at 930 ℃, 900 ℃ and 850 ℃ respectively, the microstructure was refined to different degrees, and the yield strength and tensile strength of all specimens were decreased correspondingly. The specimen with a carbon content of 0.22% exhibited optimal comprehensive properties. The yield strength of the hot-rolled plate was 366 MPa, the tensile strength was 582 MPa, the fracture elongation (A50 mm) was 27.2%, the tensile strength after heat treatment reached 1 466 MPa, the fracture elongation (A50 mm) was 16.1%, the surface Brinell hardness was 448, and the impact energy at -20 ℃ is 35 J. Through carbon content control and process optimization, the comprehensive properties of low-alloy ultra-high strength steel could be effectively enhanced, thus meeting the stringent performance requirements for materials in modern industries.

low-alloy ultra-high strength steel  /  carbon content  /  process regimes  /  mechanical property
孙成钱, 董毅, 时晓光, 王俊雄, 徐鑫, 林利, 韩楚菲, 李智. C含量及工艺制度对低合金超高强热轧钢板组织和性能影响. 鞍钢技术, 2026 , (4) : 38 -45 . DOI: 10.3969/j.issn.1006-4613.2026.04.005
Chengqian SUN, Yi DONG, Xiaoguang SHI, Junxiong WANG, Xin XU, Li LIN, Chufei HAN, Zhi LI. Effects of Carbon Contents and Process Regimes on the Microstructure and Properties of Low-alloy Ultra-high Strength Hot-rolled Steel Plate[J]. Angang Technology, 2026 , (4) : 38 -45 . DOI: 10.3969/j.issn.1006-4613.2026.04.005
Appendix
Less
Year 2026 volume Issue 4
136
29
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.1006-4613.2026.04.005
  • Online Date：2026-09-20
Article Data
Affiliations
History
  • Revised：2026-03-10
Affiliations
    1.State Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan 114009, Liaoning, China
    2.Ansteel Iron & Steel Research Institutes, Anshan 114009, Liaoning, China
References
Share
https://castjournals.cast.org.cn/joweb/agjs/EN/10.3969/j.issn.1006-4613.2026.04.005
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House