Title:
HIGH-STRENGTH STEEL BAR AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/232818
Kind Code:
A1
Abstract:
Disclosed are a high-strength steel bar and a production method therefor. The chemical components of the high-strength steel bar comprise, in mass percentage, 0.15-0.32% of C, 0.5-1.9% of Si+Mn, 1.1-2.1% of Mn+Cr+Mo+Ni, 0.02-0.8% of V, and 0.01-0.3% of at least one of Nb, Ti and Al, with the balance being Fe and inevitable impurities, wherein Mn=(2.5-3.5)Si, and carbon equivalent Ceq=C+Mn/6+(Cr+Mo +V)/5+(Cu+Ni)/15≤0.56%.
Inventors:
ZHANG YU (CN)
MA HAN (CN)
ZHOU YUN (CN)
CHEN HUANDE (CN)
MA HAN (CN)
ZHOU YUN (CN)
CHEN HUANDE (CN)
Application Number:
CN2019/096977
Publication Date:
November 26, 2020
Filing Date:
July 22, 2019
Export Citation:
Assignee:
INSTITUTE OF RES OF IRON & STEEL JIANGSU PROVINCE/SHA STEEL CO LTD (CN)
ZHANGJIAGANG HONGCHANG STEEL PLATE CO LTD (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
ZHANGJIAGANG HONGCHANG STEEL PLATE CO LTD (CN)
JIANGSU SHAGANG GROUP CO LTD (CN)
International Classes:
C22C38/02; C22C38/04; C22C38/06; C22C38/44; C22C38/46; C22C38/48; C22C38/50; C22C38/54; C21C7/072; C21D8/08
Foreign References:
| CN104451410A | 2015-03-25 | |||
| CN102732787A | 2012-10-17 | |||
| CN102796962A | 2012-11-28 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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