HIGH-STRENGTH, LOW-TEMPERATURE-RESISTANT H-SHAPED STEEL FOR MARINE ENGINEERING TEMPERING TREATMENT AND PREPARATION METHOD THEREOFFOR

Title:

HIGH-STRENGTH, LOW-TEMPERATURE-RESISTANT H-SHAPED STEEL FOR MARINE ENGINEERING TEMPERING TREATMENT AND PREPARATION METHOD THEREOFFOR

Document Type and Number:

WIPO Patent Application WO/2022/267173

Kind Code:

A1

Abstract:

High-strength, low-temperature-resistant H-shaped steel for marine engineering tempering treatment and a preparation method therefor. The chemical components of the H-shaped steel comprise according to percentage by weight: C: 0.09-0.15, Si≤0.5, Mn: 1.0-1.6, V: 0.04-0.59, Nb: 0.01-0.03, Ni: 0.51-0.7, P≤0.02, S≤0.005, Cr: 0.51-0.7, B: 0.001-0.002, Al: 0.02-0.05, N≤0.014, O≤0.004, and the remainder is Fe and inevitable impurities. The H-shaped steel for marine engineering has a yield strength which is greater than 610 MPa, a tensile strength which is greater than 700 MPa, and in particular longitudinal impact power which is greater than 50 J at -40°C.

Inventors:

WANG ZHONGXUE (CN)
ZHAO PEILIN (CN)
LIU CHAO (CN)
HAN WENXI (CN)
ZHENG LI (CN)
WANG JIANJUN (CN)
WU HUILIANG (CN)
GUO XIUHUI (CN)
LI CHAO (CN)
YANG ZHIJIE (CN)
WU WENJIAN (CN)

Application Number:

PCT/CN2021/109255

Publication Date:

December 29, 2022

Filing Date:

July 29, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SHANDONG IRON & STEEL CO LTD (CN)

International Classes:

C22C38/02; C21D1/25; C21D1/28; C21D8/00; C21D9/00; C22C38/18; C22C38/40; C22C38/46; C22C38/48; C22C38/54

Foreign References:

CN101633996A	2010-01-27
CN106191670A	2016-12-07
CN103938110A	2014-07-23
JPS6156268A	1986-03-20
JPH05186823A	1993-07-27
JP2013139610A	2013-07-18
JPH04314825A	1992-11-06

Attorney, Agent or Firm:

FASTA INTELLECTUAL PROPERTY LIMITED (CN)

Download PDF:

View/Download PDF PDF Help

Previous Patent: WINE DISPENSER

Next Patent: SCRIPT TEXT GENERATING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM