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.

Date of Patent:
Oct. 03, 2023

Filed:

Dec. 21, 2018
Applicant:

Posco Co., Ltd, Pohang-si, KR;

Inventors:

Jun Ho Park, Pohang-si, KR;

Hyun Bom Lee, Pohang-si, KR;

Jae Joong Kim, Pohang-si, KR;

Oh-Duck Kwon, Pohang-si, KR;

Assignee:

POSCO CO., LTD, Pohang-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 23/02 (2006.01); B21B 3/00 (2006.01); C21D 8/02 (2006.01); C22F 1/06 (2006.01);
U.S. Cl.
CPC ...
C22C 23/02 (2013.01); B21B 3/003 (2013.01); C21D 8/0273 (2013.01); C22F 1/06 (2013.01);
Abstract

The present invention relates to a magnesium alloy sheet and a manufacturing method thereof. In detail, the magnesium alloy sheet includes 0.5 to 3.5 wt % of Al, 0.5 to 1.5 wt % of Zn, 0.1 to 1.0 wt % of Ca, 0.01 to 1.0 wt % of Mn, a remainder of Mg, and other inevitable impurities with respect to an entire 100 wt % of a magnesium alloy sheet, wherein an average crystal grain size of the magnesium alloy sheet is 3 to 15 μm, the magnesium alloy sheet includes a stringer, and a length of the stringer in a rolling direction (RD) is equal to or less than the maximum value of 50 μm.


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