Invention Grant
- Patent Title: Hot dip galvanized and galvannealed steel sheet having excellent elongation properties
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Application No.: US14757453Application Date: 2015-12-23
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Publication No.: US09708684B2Publication Date: 2017-07-18
- Inventor: Sang Ho Han , Seong Ho Han
- Applicant: POSCO
- Applicant Address: KR Pohang-si, Gyeongsangbuk-do
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si, Gyeongsangbuk-do
- Agency: McDermott Will & Emery LLP
- Priority: KR10-2014-0187935 20141224
- Main IPC: C22C38/32
- IPC: C22C38/32 ; C22C38/22 ; C22C38/06 ; C22C38/04 ; C22C38/00 ; C22C38/38 ; C22C38/02 ; C23C2/02 ; C23C2/06 ; C21D6/00 ; C21D8/02 ; C21D9/46 ; C21D1/26 ; C23C2/04 ; C22C38/18 ; C23C2/28 ; C23C2/12 ; C23C30/00 ; C23C28/02 ; B32B15/01 ; B32B15/04 ; B32B15/18
Abstract:
There is provided a hot-dip galvanized steel sheet and a hot-dip galvannealed steel sheet, which have excellent elongation properties, and methods for manufacturing the hot-dip galvanized steel sheet and the hot-dip galvannealed steel sheet. The present disclosure relates to a hot-dip galvanized steel sheet in which a hot-dip galvanized layer is formed on a surface of a base steel sheet, the hot-dip galvanized steel sheet having excellent elongation properties and being characterized by the composition and the microstructure thereof.
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