Patent · US Active

Hot dipped high manganese steel and manufacturing method therefor

US11377712B2 · kind B2 · utility

0Cited by

0References

21Claims

0Family size

Assignee

BAOSHAN IRON & STEEL CO., LTD. · CN

Inventors

Xinyan JIN · Shanghai, CN
Yong Zhong · Lo Wu, CN
Guangkui Hu · Shanghai, CN

Key dates

Filing date	Apr 20, 2018
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Dec 18, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2211/005
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.