logo

For the Inventor, By the Inventor

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 10907236 B1

PDFFull Text
Date of Patent:
Feb. 02, 2021

Filed:

Apr. 19, 2018

Cold rolled steel sheet for drawn can and method for manufacturing same

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Masaharu Oka, Tokyo, JP;

Nobusato Kojima, Tokyo, JP;

Yuta Dairokuno, Tokyo, JP;

Michihiro Nono, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/01 (2006.01); C21D 9/46 (2006.01); C21D 8/02 (2006.01); C21D 6/00 (2006.01); C22C 38/14 (2006.01); C22C 38/12 (2006.01); C22C 38/06 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); C22C 38/60 (2006.01); B32B 15/04 (2006.01); C22C 38/48 (2006.01); B32B 1/08 (2006.01); C22C 38/26 (2006.01); B32B 15/18 (2006.01); C23C 2/28 (2006.01); C23C 28/02 (2006.01); C23C 30/00 (2006.01); C23C 2/04 (2006.01); C23C 2/08 (2006.01); C23C 2/40 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); B32B 1/08 (2013.01); B32B 15/011 (2013.01); B32B 15/013 (2013.01); B32B 15/015 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/26 (2013.01); C22C 38/48 (2013.01); C22C 38/60 (2013.01); C23C 2/04 (2013.01); C23C 2/08 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); C23C 28/02 (2013.01); C23C 28/021 (2013.01); C23C 28/023 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C21D 2211/005 (2013.01); Y10T 428/12722 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12937 (2015.01); Y10T 428/12944 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12965 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/26 (2015.01); Y10T 428/263 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01); Y10T 428/27 (2015.01);
Abstract

A steel sheet for a drawn can has a predetermined chemical composition and has a ferrite single-phase structure with a crystal grain size number of 11.0 or more, the sheet thickness is 0.15 to 0.50 mm, in an L direction of the steel sheet after an ageing treatment at 100° C. for one hour, an yield strength YP is 220 to 290 MPa, a tensile strength TS is 330 to 390 MPa, a total elongation EL is 32% or more, an yield point elongation YP-EL is 0%, an average plastic strain ratio ris more than 1.35, and an in-plane anisotropy Δr is −0.30 to +0.15.

Find Patent Forward Citations

Loading…