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Thursday, June 28, 2007 - 11:00 AM
HSS2.5

Steels For Gears Applications

A. Tronche, AUBERT & DUVAL, Gennevilliers, France

STEELS FOR GEARS APPLICATIONS

AUBERT& DUVAL has developed over the years high strength steels grades for gears applications. Carburized, nitrided and induction treated grades are available to provide designers with a large range of possibilities for overcoming a number of challenges, including, environmental, fabrication, weight, price, etc.

Advantages of using the alloys in various forms will be discussed; nitriding versus carburizing, low carbon steels versus precipitation hardened steels. A focus on a few grades will be made; CX13VDW, a carburizing stainless steel, for replacing AISI9310 where corrosion resistance is required. FDG and FND, gas quenching steels, for reduction of distortions, machining and scrap compared to AISI9310 product fabrications. FND also allows high working temperatures. Carburized NC310YW and nitrided ML340 where very high strength is required. And, deep nitrided GKH and GKP grades for very high fatigue limits.


Summary: AUBERT&DUVAL has developed over the years high strength steels grades for gears applications. Carburized, nitrided and induction treated grades are available to provide designers with a large range of possibilities for overcoming a number of challenges, including, environmental, fabrication, weight, price, etc. Advantages of using the alloys in various forms will be discussed; nitriding versus carburizing, low carbon steels versus precipitation hardened steels. A focus on a few grades will be made; CX13VDW, a carburizing stainless steel, for replacing AISI9310 where corrosion resistance is required. FDG and FND, gas quenching steels, for reduction of distortions, machining and scrap compared to AISI9310 product fabrications. FND also allows high working temperatures. Carburized NC310YW and nitrided ML340 where very high strength is required. And, deep nitrided GKH and GKP grades for very high fatigue limits.