Current Status of Research on High-Strength Steel Above 1 800 MPa Grade

doi:10.12068/j.issn.1005-3026.2025.20250006

Abstract

Abstract:

High-strength steel occupies an important position in modern industry because of its performance advantages and cost effectiveness. Focusing on its development trends and technical challenges， this paper mainly analyzed three types of martensitic steel with tensile strength exceeding 1 800 MPa and excellent plasticity and toughness， namely low-alloyed martensitic steel， quenching-partitioning （Q&P） martensitic steel， and martensitic aging steel. Low-alloyed martensitic steel was heated to obtain tempered martensitic steel， and the balance of strength and toughness was achieved by adjusting the alloying composition and process. Q&P martensitic steel contained carbon-rich austenite， which enhanced strength and plasticity through phase transformation during deformation. Martensitic aging steel with very low carbon content relied on aging for precipitation strengthening， and its toughness was superior to that of carbon-strengthened steel of the same strength. This paper systematically summarized the research progress in composition design， manufacturing process， and mechanical properties of the above-mentioned high-strength steel.

Key words: high-strength steel, low-alloyed martensitic steel, hot stamping steel, quenching-partitioning martensitic steel, martensitic aging steel

CLC Number:

TG 142.1

Hong-liang YI, Ming-hui ZHAO, Rui-ting WANG, Yan-qi MA. Current Status of Research on High-Strength Steel Above 1 800 MPa Grade[J]. Journal of Northeastern University(Natural Science), 2025, 46(8): 77-92.

Figures/Tables 15

References 119

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钢号	合金成分	工艺	屈服强度/MPa	抗拉强度/MPa	延伸率/%
30CrMnSiNi2A	0.26~0.33C-0.9~1.2Si-1.0~1.3Mn- 0.9~1.2Cr-1.4~1.8Ni	900 ℃油淬+ 250 ℃回火	/	≥1 600	≥9
35Si2Mn2MoVA	0.32~0.38C-1.4~1.7Si-1.6~1.9Mn- 0.35~0.45Mo-0.1~0.2V	920 ℃油淬+ 250 ℃回火	/	≥1 700	≥9
4130	0.28~0.33C-0.2~0.35Si-0.4~0.6Mn- 0.8~1.1Cr-0.15~0.25Mo	860 ℃油淬+ 205 ℃回火	1 340	1 550	11
4140	0.38~0.43C-0.2~0.35Si-0.75~1.0Mn- 0.8~1.1Cr-0.15~0.25Mo	845 ℃油淬+ 205 ℃回火	1 740	1 965	11
4340	0.38C~0.43C-0.2~0.35Si-0.6~0.8Mn- 0.7~0.9Cr-1.65~2.0Ni-0.2~0.3Mo	845 ℃油淬+ 205 ℃回火	1 860	1 980	11
300M	0.41~0.46C-1.45~1.8Si-0.65~0.9Mn- 0.65~0.95Cr-1.6~2.0Ni-0.3~0.4Mo-≥0.05V	860 ℃油淬+ 260 ℃回火	1 670	2 050	8
D6AC	0.42~0.48C-0.15~0.3Si-0.6~0.9Mn- 0.8~1.05Cr-0.4~0.7Ni-0.9~1.1Mo-0.05~0.1V	880 ℃油淬+ 315 ℃回火	1 760	2 000	8
6150	0.48~0.53C-0.2~0.35Si-0.7~0.9Mn- 0.8~1.1Cr	860 ℃油淬+ 205 ℃回火	1 810	2 050	10
8640	0.38~0.43C-0.2~0.35Si-0.75~1.0Mn- 0.4~0.6Cr-0.4~0.7Ni-0.15~0.25Mo	820 ℃油淬+ 205 ℃回火	1 670	1 810	8

钢号	合金成分	工艺	屈服强度/MPa	抗拉强度/MPa	延伸率/%
30CrMnSiNi2A	0.26~0.33C-0.9~1.2Si-1.0~1.3Mn- 0.9~1.2Cr-1.4~1.8Ni	900 ℃油淬+ 250 ℃回火	/	≥1 600	≥9
35Si2Mn2MoVA	0.32~0.38C-1.4~1.7Si-1.6~1.9Mn- 0.35~0.45Mo-0.1~0.2V	920 ℃油淬+ 250 ℃回火	/	≥1 700	≥9
4130	0.28~0.33C-0.2~0.35Si-0.4~0.6Mn- 0.8~1.1Cr-0.15~0.25Mo	860 ℃油淬+ 205 ℃回火	1 340	1 550	11
4140	0.38~0.43C-0.2~0.35Si-0.75~1.0Mn- 0.8~1.1Cr-0.15~0.25Mo	845 ℃油淬+ 205 ℃回火	1 740	1 965	11
4340	0.38C~0.43C-0.2~0.35Si-0.6~0.8Mn- 0.7~0.9Cr-1.65~2.0Ni-0.2~0.3Mo	845 ℃油淬+ 205 ℃回火	1 860	1 980	11
300M	0.41~0.46C-1.45~1.8Si-0.65~0.9Mn- 0.65~0.95Cr-1.6~2.0Ni-0.3~0.4Mo-≥0.05V	860 ℃油淬+ 260 ℃回火	1 670	2 050	8
D6AC	0.42~0.48C-0.15~0.3Si-0.6~0.9Mn- 0.8~1.05Cr-0.4~0.7Ni-0.9~1.1Mo-0.05~0.1V	880 ℃油淬+ 315 ℃回火	1 760	2 000	8
6150	0.48~0.53C-0.2~0.35Si-0.7~0.9Mn- 0.8~1.1Cr	860 ℃油淬+ 205 ℃回火	1 810	2 050	10
8640	0.38~0.43C-0.2~0.35Si-0.75~1.0Mn- 0.4~0.6Cr-0.4~0.7Ni-0.15~0.25Mo	820 ℃油淬+ 205 ℃回火	1 670	1 810	8

序号	合金成分	屈服强度/MPa	抗拉强度/MPa	延伸率/%	参考文献
1	0.34C-0.25Si-1.34Mn-0.04Al-0.21V-0.04Ti-0.002B-0.24Cr	1 353	2 018	7.5	[22]
2	0.36C-0.22Si-1.31Mn-0.298Cr-0.005B-0.157Mo	1 421	2 061	7	[23]
3	0.31C-0.3Si-1.5Mn-0.03Al-1.0Cr-0.002B-0.07Ti-0.046Nb	1 321	2 183	5.7	[24]
4	0.38C-1.48Si-1.58Mn-0.035Al-0.91Cr-0.003 7B-0.07Ti-0.048Nb	1 119	2 121	8.86	[25]
5	0.354C-0.32Si-1.48Mn-0.05Al-0.042Ti-0.002 5B	1 301	2 046	6.6	[26]
6	0.38C-0.19Si-1.2Mn-0.28Cr-0.005Mo-0.005Ni-0.003B-0.024Ti	1 424	2 045	5.9	[27]
7	0.61C-1.5Cr-0.08Ni-0.05Ti-0.07Nb	1 940	2 400	10	[28]
8	0.66C-1.42Cr-0.4Si-0.42Mn-0.07V	2 367	2 613	7	[29]
9	0.46C-1.99Mn-1.53Si-1.27Cr-0.76Al-0.45Ni-0.3Mo-0.28V	1 809	2 590	12.6	[30]
10	0.28C-1.76Mn-0.35Si-4.4Ni-1.88Mo-0.02Al-0.06Ti-0.08Nb	1 487	2 032	6.53	[31]
11	0.38C-1.48Si-1.58Mn-0.035Al-0.9~1.0Cr-0.003~0.004 B-0.06~0.08Ti-0.04~0.05Nb	1 500	2 080	8.8	[32]^※
12	0.42C-0.19Si-0.80Mn-0.02Ni-1.16Cr-0.16Mo	1 540	2 068	12.1	[33]
13	0.56C-2.3Si-0.69Mn-0.89Cr-0.02Mo-0.1V-0.03Ti-0.2Ni-0.15Cu	2 038	2 382	8.8	[34]
14	0.4C-1.6Si-1.5Mn-1.4Cr-0.4Mo-0.3No-0.1W	1 520	2 100	/	[35]^※
15	0.48C-0.85Si-0.24Mn-0.63Cr-2.0Ni-0.42Mo-0.2V	1 720	2 441	10	[36] ^※
16	0.34C-0.32Si-1.39Mn-0.03Ti-0.0025B-0.11~0.3V	1 508	2 121	8	[37-38]

序号	合金成分	屈服强度/MPa	抗拉强度/MPa	延伸率/%	参考文献
1	0.34C-0.25Si-1.34Mn-0.04Al-0.21V-0.04Ti-0.002B-0.24Cr	1 353	2 018	7.5	[22]
2	0.36C-0.22Si-1.31Mn-0.298Cr-0.005B-0.157Mo	1 421	2 061	7	[23]
3	0.31C-0.3Si-1.5Mn-0.03Al-1.0Cr-0.002B-0.07Ti-0.046Nb	1 321	2 183	5.7	[24]
4	0.38C-1.48Si-1.58Mn-0.035Al-0.91Cr-0.003 7B-0.07Ti-0.048Nb	1 119	2 121	8.86	[25]
5	0.354C-0.32Si-1.48Mn-0.05Al-0.042Ti-0.002 5B	1 301	2 046	6.6	[26]
6	0.38C-0.19Si-1.2Mn-0.28Cr-0.005Mo-0.005Ni-0.003B-0.024Ti	1 424	2 045	5.9	[27]
7	0.61C-1.5Cr-0.08Ni-0.05Ti-0.07Nb	1 940	2 400	10	[28]
8	0.66C-1.42Cr-0.4Si-0.42Mn-0.07V	2 367	2 613	7	[29]
9	0.46C-1.99Mn-1.53Si-1.27Cr-0.76Al-0.45Ni-0.3Mo-0.28V	1 809	2 590	12.6	[30]
10	0.28C-1.76Mn-0.35Si-4.4Ni-1.88Mo-0.02Al-0.06Ti-0.08Nb	1 487	2 032	6.53	[31]
11	0.38C-1.48Si-1.58Mn-0.035Al-0.9~1.0Cr-0.003~0.004 B-0.06~0.08Ti-0.04~0.05Nb	1 500	2 080	8.8	[32]^※
12	0.42C-0.19Si-0.80Mn-0.02Ni-1.16Cr-0.16Mo	1 540	2 068	12.1	[33]
13	0.56C-2.3Si-0.69Mn-0.89Cr-0.02Mo-0.1V-0.03Ti-0.2Ni-0.15Cu	2 038	2 382	8.8	[34]
14	0.4C-1.6Si-1.5Mn-1.4Cr-0.4Mo-0.3No-0.1W	1 520	2 100	/	[35]^※
15	0.48C-0.85Si-0.24Mn-0.63Cr-2.0Ni-0.42Mo-0.2V	1 720	2 441	10	[36] ^※
16	0.34C-0.32Si-1.39Mn-0.03Ti-0.0025B-0.11~0.3V	1 508	2 121	8	[37-38]

编号	合金成分的质量分数/%									工艺	力学性能		参考文献
编号	C	Mn	Si	Al	Cr	Ni	Nb	Mo	V	工艺	抗拉强度/MPa	延伸率/%	参考文献
1	0.41	1.3	1.27	—	0.56	1.01	—	—	—	Q&P	2 468	11.6	[53]
2	0.43	0.59	2.03	0.008	1.33	0.07	0.03	0.03	—	Q&P	1 810~2 096	12~20	[54]
3	0.43	0.59	2.6	0.008	1.33	0.01	0.03	0.03	—	Q&P	1 965~1 975	12~17	[54]
4	0.43	1.17	2.6	0.008	1.33	0.07	0.03	0.03	—	Q&P	1 837~2 218	14~22	[54]
5	0.42	0.59	2.6	—	1.33	—	0.03	0.03	—	Q&P	1 810~2 096	12~20	[55]
6	0.56	0.62	1.95	—	0.75	—	0.04	0.03	—	Q&P	2 100~2 251	16~22	[55]
7	0.56	1.36	1.88	—	1.36	—	0.04	0.03	—	Q&P	2 168~2 377	8~13	[55]
8	0.32	0.23	1.78	—	1.08	—	—	0.45	0.21	Q&FP	1 942	~10	[37]