Ferritic stainless steel and external part for a watch made ther

Details Ferritic stainless steel and external part for a watch made ther Ferritic stainless steel and external part for a watch made ther

1999-06-10

2000-07-25

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75246, 420 65, 420 67, C22C 3302

Patent

active

060932333

ABSTRACT:
The invention concerns a nickel free stainless steel alloy having a ferritic and magnetic structure, characterised in that it contains at least 0.4% in weight of nitrogen, and at most 0.5% in weight of nickel, the remainder being formed of iron and the inevitable impurities. The invention also concerns an external part for a watch made of such a steel alloy.

REFERENCES:
patent: 4140526 (1979-02-01), Moroishi et al.
patent: 4340424 (1982-07-01), Katoh et al.

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