Title:
HIGH-STRENGTH AND HIGH-TOUGHNESS HOT-ROLLED H-SHAPED STEEL FOR BUILDING AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/016543
Kind Code:
A1
Abstract:
High-strength and high-toughness hot-rolled H-shaped steel for a building and a preparation method therefor. The H-shaped steel comprises the following chemical components in percentage by weight (wt%): C: 0.06-0.10; Si: ≤0.25; Mn: 0.8-1.30; P≤0.015; S≤0.008; Cu: 0.15-0.25; Cr: 0.25-0.60; Ni: 0.10-0.19; V: 0.01-0.03; Al: 0.01-0.03; RE: 0.009-0.019; As+Sn+Zn+Pb+Ca+Mg≤0.035; N≤0.008; T.[O]≤0.002; and the balance being Fe and inevitable impurities. The H-shaped steel achieves the weight reduction of building structural steel, and has good comprehensive properties such as corrosion resistance, Z-direction property, and low-temperature toughness.
Inventors:
ZHAO PEILIN (CN)
WANG JIANJUN (CN)
ZHANG PEI (CN)
LU FENG (CN)
WU WENJIAN (CN)
MA ZUOCANG (CN)
KONG LINGKUN (CN)
LI CHAO (CN)
LIU HONGYIN (CN)
LI DONG (CN)
WANG JIANJUN (CN)
ZHANG PEI (CN)
LU FENG (CN)
WU WENJIAN (CN)
MA ZUOCANG (CN)
KONG LINGKUN (CN)
LI CHAO (CN)
LIU HONGYIN (CN)
LI DONG (CN)
Application Number:
PCT/CN2022/133957
Publication Date:
January 25, 2024
Filing Date:
November 24, 2022
Export Citation:
Assignee:
SHANDONG IRON & STEEL CO LTD (CN)
International Classes:
C22C38/02; B21B1/46; B21B45/00; B21B45/02; B22D11/111; C21C5/36; C21C7/00; C21C7/06; C21C7/10; C21D8/00; C22C33/06; C22C38/04; C22C38/06; C22C38/42; C22C38/46
Foreign References:
| CN105018861A | 2015-11-04 | |||
| CN101497969A | 2009-08-05 | |||
| JP2018103248A | 2018-07-05 | |||
| JP2016141834A | 2016-08-08 | |||
| CN108642381A | 2018-10-12 | |||
| CN108286008A | 2018-07-17 | |||
| CN102773271A | 2012-11-14 | |||
| CN113564480A | 2021-10-29 | |||
| CN103334051B | 2015-11-04 | |||
| CN102418037B | 2013-04-24 |
Attorney, Agent or Firm:
FASTA INTELLECTUAL PROPERTY LIMITED (CN)
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