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:
Jul. 18, 2017
Filed:
Dec. 27, 2012
Posco, Pohang-si, Gyeongsangbuk-do, KR;
Jong-Kyo Choi, Pohang-si, KR;
Woo-Kil Jang, Pohang-si, KR;
Young-Hwan Park, Pohang-si, KR;
Hong-Ju Lee, Pohang-si, KR;
POSCO, Pohang-si, Gyeongsangbuk-Do, KR;
Abstract
Provided is a wear resistant steel including 2.6 wt % to 4.5 wt % of manganese (Mn), carbon (C) satisfying (6-Mn)/50≦C≦(10-Mn)/50, 0.05 wt % to 1.0 wt % of silicon (Si), and iron (Fe) as well as other unavoidable impurities as a remainder, wherein a Brinell hardness of a surface portion is in a range of 360 to 440. The wear resistant steel further includes at least one component selected from the group consisting of 0.1 wt % or less (excluding 0 wt %) of niobium (Nb), 0.1 wt % or less (excluding 0 wt %) of vanadium (V), 0.1 wt % or less (excluding 0 wt %) of titanium (Ti), and 0.02 wt % or less (excluding 0 wt %) of boron (B) to complement the performance thereof. The wear resistant steel is characterized in that a microstructure includes martensite in an amount of 90% or more, and an average packet diameter of the martensite is 20 μm or less.