CRS
CRS
4:05 PM EDT $56.16 +0.70
CRS
CRS
4:05 PM EDT $56.16 +0.70

CarTech® Ferrium® C64® Alloy

UNS K92731 | U.S. Patent No. 8, 801, 872 B2
Composition (Nominal):
0.11 C, 3.5 Cr., 7.5 Ni, 16.3 Co, 1.75 Mo, 0.2 W, 0.02 V, Bal. Fe

A premium quality carburizing steel that offers high core strength, high fatigue strength, high temperature resistance and high hardenability. It is processed by vacuum induction melting followed by vacuum arc remelting. It can achieve carburized case hardness of 62-64 HRC (exceeding that of conventional gear steels such as 8620, 9310, etc.) and also provides ultra-high core properties for demanding shaft and gear applications.

The high tempering temperature (925°F) offers a 400-600°F increase in thermal stability relative to conventional gear steels. The alloy benefits from low-pressure carburization at high temperature in order to reduce manufacturing time and expense while providing reliable carburization profiles. It is direct gas quenched using moderate pressures which reduces the amount of distortion and eliminates the need for a separate hardening/quenching process.

Typical applications include power transmission shafts, gears and other demanding applications in aerospace, energy, and racing/off-road/mission-critical vehicles and other industries where weight savings, compactness, high temperature resistance and high surface fatigue resistance are valued.

Specifications: AMS 6509

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Carpenter Technology Corporation Carpenter Technology Corporation

Carpenter Technology Corporation (NYSE: CRS) is a recognized leader in high-performance specialty alloy-based materials and process solutions for critical applications in the aerospace, defense, transportation, energy, industrial, medical, and consumer electronics markets.

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