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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 12390892 B1

PDFFull Text
Date of Patent:
Aug. 19, 2025

Filed:

Apr. 23, 2021

Welding wires for obtaining giga-grade welds, welded structures manufacturing using same, and welding method thereof

Applicant:

Posco, Pohang-si, KR;

Inventors:

Gyu-Yeol Bae, Incheon, KR;

Hong-Chul Jeong, Pohang-si, KR;

Assignee:

POSCO, Pohang-si, KR;

Attorney:

Morgan Lewis & Bockius LLP

Primary Examiner:

Elizabeth M Kerr

Int. Cl.
CPC ...
B23K 35/30 (2006.01); B23K 9/173 (2006.01); B23K 9/23 (2006.01); B23K 35/02 (2006.01); B23K 101/18 (2006.01); B23K 101/34 (2006.01); B23K 103/04 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/22 (2006.01); C22C 38/38 (2006.01);
U.S. Cl.
CPC ...
B23K 35/3086 (2013.01); B23K 9/173 (2013.01); B23K 9/23 (2013.01); B23K 35/0261 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/22 (2013.01); C22C 38/38 (2013.01); B23K 2101/18 (2018.08); B23K 2101/34 (2018.08); B23K 2103/04 (2018.08);
Abstract

A welding wire for obtaining a giga-grade weld, a welded structure manufactured using same, and a welding method thereof are provided. The welding wire of the present invention comprises: by mass % of the whole wire, 0.08 to 0.15% of C; 0.001% to 0.1% of Si; 1.6 to 1.9% of Mn; 0.015% or less of P; 0.015% or less of S; 4.0 to 5.2% of Cr; 0.4 to 0.65% of Mo, and the remainder being Fe and unavoidable impurities, wherein value X defined by the following relation 1 satisfies the range of 0.7 to 1.1%. [Relational Expression 1] X (%)=[Cr]/10+[Mo]−4x[Si]/[Mn].

Find Patent Forward Citations

Bae, Gyu-Yeol. (2025). Welding wires for obtaining giga-grade welds, welded structures manufacturing using same, and welding method thereof (U.S. Patent No. 12390892). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12390892

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