Method for producing austenitic steel plate with excellent surfa

Details Method for producing austenitic steel plate with excellent surfa Method for producing austenitic steel plate with excellent surfa

1998-09-18

1999-11-02

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148609, 148610, C21D 802

Patent

active

059762829

ABSTRACT:
An austenite stainless steel plate having both excellent surface brightness and superior corrosion resistance, without polishing after finish annealing and pickling for descaling of the strip. The steel plate contains Si 0.02 to 0.2 wt % together with Si oxides at 1.0 wt % or less in the surface layer part in the 10 .mu.m depth from the surface. The depth of the intergranular groove in the surface layer part is 0.1 .mu.m or more to 0.5 .mu.m or less. Furthermore, the steel plate contains Al of 0.005 wt % or less and 0 of 0.006 wt % or less. The Al oxides are contained at 0.1 wt % or less in the surface layer part in the 10 .mu.m depth from the surface.

REFERENCES:
patent: 5830291 (1998-11-01), McGuire et al.

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