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Hot Stamped Molded Body

Abstract: A hot-stamped molded body having: a chemical composition which contains, in mass%, C in the amount of 0.15-0.50%, inclusive, Si in the amount of 0.10-3.00%, inclusive, Mn in the amount of 0.10-3.00%, inclusive, P in an amount less than 0.10%, S in an amount less than 0.10%, N in an amount less than 0.10%, Ti in the amount of 0.020-0.150%, inclusive, and B in the amount of 0.002-0.010%, inclusive, and optionally contains Al, Cr, Mo, Co, Ni, Cu, V, W, Ca, Mg and rare earth metals, with the remainder being Fe and impurities; a microstructure which has martensite in an amount no less than 85% and residual austenite in an amount less than 15% as a volume percentage; and a standard deviation in the frequency distribution of nanohardness in the microstructure of no more than 0.70 GPa and an average crystalline particle diameter in said microstructure of no more than 4.0µm.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
25 July 2023
Publication Number
49/2023
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application

Applicants

NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. MURASAWA Kodai
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. FUJINAKA Shingo
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
3. TODA Yuri
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202317050079-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [25-07-2023(online)].pdf 2023-07-25
2 202317050079-STATEMENT OF UNDERTAKING (FORM 3) [25-07-2023(online)].pdf 2023-07-25
3 202317050079-REQUEST FOR EXAMINATION (FORM-18) [25-07-2023(online)].pdf 2023-07-25
4 202317050079-PROOF OF RIGHT [25-07-2023(online)].pdf 2023-07-25
5 202317050079-PRIORITY DOCUMENTS [25-07-2023(online)].pdf 2023-07-25
6 202317050079-POWER OF AUTHORITY [25-07-2023(online)].pdf 2023-07-25
7 202317050079-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [25-07-2023(online)].pdf 2023-07-25
8 202317050079-FORM 18 [25-07-2023(online)].pdf 2023-07-25
9 202317050079-FORM 1 [25-07-2023(online)].pdf 2023-07-25
10 202317050079-DECLARATION OF INVENTORSHIP (FORM 5) [25-07-2023(online)].pdf 2023-07-25
11 202317050079-COMPLETE SPECIFICATION [25-07-2023(online)].pdf 2023-07-25
12 202317050079-FORM 3 [15-12-2023(online)].pdf 2023-12-15