LEGA DI ACCIAIO PER TUBI DI TELAI DI BICICLETTE,E PROCEDIMENTO DI PREPARAZIONE

A steel alloy is disclosed for use in making bicycle frame tubing with very favourable static and dynamic loading properties for the intended use. The steel comprises from 0.14 to 0.18% carbon, from 0.15 to 0.30% silicon, from 1.6 to 1.8% manganese, from 1.9 to 2.1% chromium, from 0.45 to 0.60% moly...

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Bibliographische Detailangaben
1. Verfasser:	KLATZER STEFAN
Format:	Patent
Sprache:	ita
Schlagworte:	ALLOYS CHEMISTRY CYCLE AXLE SUSPENSIONS CYCLE FRAMES CYCLE SIDE-CARS, FORECARS, OR THE LIKE CYCLE STEERING DEVICES CYCLES FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A steel alloy is disclosed for use in making bicycle frame tubing with very favourable static and dynamic loading properties for the intended use. The steel comprises from 0.14 to 0.18% carbon, from 0.15 to 0.30% silicon, from 1.6 to 1.8% manganese, from 1.9 to 2.1% chromium, from 0.45 to 0.60% molybdenum, at least 0.015% aluminium and iron. The alloy is prepared in known manner and first annealed at from 900 to 930 DEG C, then air-quenched, then tempered at temperatures between 500 and 650 DEG C. A material of this kind is particularly resistant to fatigue stress and therefore has a long life.