Title:
HOT DIPPED HIGH MANGANESE STEEL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/214683
Kind Code:
A1
Abstract:
A hot dipped high manganese steel and a manufacturing method therefor. The high manganese steel comprises a steel base plate and a coating on the surface of the steel base plate. The core of the steel base plate is austenite. The surface layer of the steel base plate is a ferrite fine grain layer. The ferrite fine grain layer comprises an oxide of Al. Furthermore, the steel base plate of the hot dipped high manganese steel comprises, in mass percentages, 10 to 30% of Mn element, 1 to 2% of Al element, and 0.4 to 0.8% of C element. The manufacturing method comprises: 1) manufacturing strip steel; 2) primary annealing and acid washing; 3) secondary annealing and hot dipping.
Inventors:
JIN XINYAN (CN)
ZHONG YONG (CN)
HU GUANGKUI (CN)
ZHONG YONG (CN)
HU GUANGKUI (CN)
Application Number:
PCT/CN2018/083849
Publication Date:
November 29, 2018
Filing Date:
April 20, 2018
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
C22C38/04; C22C38/06
Foreign References:
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Other References:
See also references of EP 3636790A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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