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.:
Date of Patent:
Jun. 13, 2023
Filed:
Jul. 05, 2018
Posco, Pohang-si, KR;
POSCO CO., LTD, Pohang-si, KR;
Abstract
The purpose of one aspect of the present disclosure is to provide: a cold rolled steel sheet for a flux-cored wire, having excellent low temperature toughness, welding workability and processability; and a manufacturing method thereof. One embodiment of the present disclosure provides: a cold rolled steel sheet for a flux-cored wire, comprising, by wt %, 0.005-0.10% of C, 0.05-0.25% of Mn, 0.05% or less of Si (excluding 0%), 0.0005-0.01% of P, 0.008% or less of S (excluding 0%), 0.005-0.06% of Al, 0.0005-0.003% of N, 0.8-1.7% of Ni, 0.1-0.5% of Cr, and a balance of Fe and inevitable impurities, and having 0.10-0.75 of WN defined by Relationship 1 below; and a manufacturing method therefor.WN=(31×C+0.5×Mn+20×Al)×(Ni)×(0.6×Cr).  Relationship 1