Invention Publication
- Patent Title: STEEL SHEET FOR HOT PRESS FORMED MEMBER HAVING EXCELLENT RESISTANCE TO HYDROGEN DELAYED FRACTURE AND METHOD FOR MANUFACTURING THEREOF
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Application No.: US18373451Application Date: 2023-09-27
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Publication No.: US20240051265A1Publication Date: 2024-02-15
- Inventor: Seong-Woo KIM , Jin-Keun OH , Yeol-Rae CHO
- Applicant: POSCO CO., LTD
- Applicant Address: KR Gyeongsangbuk-do Pohang-si
- Assignee: POSCO CO., LTD
- Current Assignee: POSCO CO., LTD
- Current Assignee Address: KR Gyeongsangbuk-do, Pohang-si
- Priority: KR 20170068651 2017.06.01 KR 20170101567 2017.08.10
- The original application number of the division: US17728396 2022.04.25
- Main IPC: B32B15/01
- IPC: B32B15/01 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/28 ; C22C38/32 ; C23C2/12 ; C23C2/28 ; B21D22/02 ; C21D9/46 ; C22F1/00 ; C22F1/04 ; C21D6/00 ; C23C2/40 ; C23F17/00 ; B21D35/00 ; C23C26/00 ; C23C28/02 ; C23C30/00 ; C23C28/00 ; B32B15/18 ; C23C2/04 ; B32B15/04 ; C23C2/26 ; C23C2/06 ; C22C30/00 ; C22C38/14 ; C22C38/48 ; C22C38/40 ; C22C38/18 ; C22C38/42 ; C22C38/44 ; C22C38/08 ; C22C38/16 ; C22C38/24 ; C22C21/00 ; C22C38/38 ; C22C38/46 ; C22C38/20 ; C22C38/26 ; C22C38/22 ; C22C38/58 ; C22C38/12 ; C22C38/50 ; C22C38/54 ; B21D37/16 ; B32B5/20 ; B32B5/18 ; C21D9/52 ; C21D1/26 ; C22C38/60
Abstract:
Provided is a steel sheet for a hot press formed member having excellent resistance to hydrogen delayed fracture, and a method for manufacturing the same. A steel sheet for a hot press formed member comprises: a base steel sheet; an aluminum alloy plating layer on a surface of the base steel sheet; and an oxide layer which is formed on a surface of the plating layer and has a thickness of 0.05 μm or more.
Information query
