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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10781510 B1

PDFFull Text
Date of Patent:
Sep. 22, 2020

Filed:

Oct. 19, 2016

Thick steel plate with low cracking sensitivity and low yield ratio and manufacturing method thereof

Applicant:

Jiangyin Xingcheng Special Steel Works Co., Ltd, Jiangyin, CN;

Inventors:

Xianjin Sun, Jiangyin, CN;

Zhuzhong Gao, Jiangyin, CN;

Jianguo Hu, Jiangyin, CN;

Jingtao Li, Jiangyin, CN;

Pifeng Miao, Jiangyin, CN;

Xiaolin Wu, Jiangyin, CN;

Ailai Shi, Jiangyin, CN;

Fu Zhao, Jiangyin, CN;

Feng Xu, Jiangyin, CN;

Shouyu Fang, Jiangyin, CN;

Assignee:

JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO., LTD, Jiangyin, CN;

Attorneys:

Yue (Robert) Xu

Apex Attorneys at Law, LLP

Primary Examiner:

Jie Yang

Int. Cl.
CPC ...
C21D 1/84 (2006.01); C22C 38/58 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/04 (2006.01); C21D 8/02 (2006.01); C22C 38/12 (2006.01); C22C 38/18 (2006.01); C22C 38/08 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C21D 6/02 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C21D 1/84 (2013.01); C21D 8/0205 (2013.01); C21D 8/0263 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C21D 6/02 (2013.01);
Abstract

An ultra-heavy steel plate with low cracking sensitivity and low yield ratio, the mass percentages of chemical components of the steel plate are C 0.05-0.09; Si 0.2-0.4; Mn 1.3-1.6; Al 0.02-0.04; Nb 0.03-0.08; V 0.03-0.08; Cr 0.1-0.5; Ni 0.1-0.5; Mo 0.1-0.3; Cu 0.2-0.5; Ti 0.01-0.02; P≤0.015; S≤0.003; N≤0.007, the balance being Fe and inevitable impurities; the carbon equivalent is ≤0.43, the cold cracking sensitivity coefficient Pcm is ≤0.20. A low cracking sensitivity and low yield ratio steel plate with a thickness of 40-70 mm is manufactured by the process steps of KR molten iron pretreatment-converter smelting-LF refining-RH vacuum degassing-continuous casting-lid-covering slow cooling for the continuous casting slabs-casting slabs heating-controlled rolling-controlled cooling-hot straightening-air cooling and so on.

Find Patent Forward Citations

Sun, Xianjin. (2020). Thick steel plate with low cracking sensitivity and low yield ratio and manufacturing method thereof (U.S. Patent No. 10781510). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10781510

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