EXTERIOR PARTS FOR WRISTWATCH

PROBLEM TO BE SOLVED: To provide exterior parts for wristwatch composed of austenitic free-cutting stainless steel which has excellent corrosion resistance and polishability and in which manufacturability with respect to hot forging, cold forging, machining, etc., are improved. SOLUTION: The exterio...

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Bibliographische Detailangaben
1. Verfasser:	KUSHIDA HACHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS HOROLOGY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES METALLURGY PHYSICS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide exterior parts for wristwatch composed of austenitic free-cutting stainless steel which has excellent corrosion resistance and polishability and in which manufacturability with respect to hot forging, cold forging, machining, etc., are improved. SOLUTION: The exterior parts for wristwatch which is composed of austenitic free-cutting stainless steel having a composition consisting of, by mass, ≤0.10% C, 0.20 to 1.00% Si, 0.50 to 2.00% Mn, 0.050 to 0.300 S, 10.00 to 15.00% N, 14.00 to 18.00% Cr, 1.00 to 3.00% Mo, ≤0.020% Al, 0.0010 to 0.0080% Ca, 0.0040 to 0.012% O and the balance Fe with inevitable impurities can be provided. COPYRIGHT: (C)2004,JPO