Industry Specifications: USA Aerospace: AMS 4974.
TIMETAL 679 has excellent tensile strength and is creep resistant up to 450°C. It is a three-phase alloy at room temperature, having an alpha + beta + compound field and a maximum processing temperature of 925°C is recommended. It is nonmagnetic.
Typical heat treatment for this alloy: Solution heat treatment: 900°C for 30 min. Aging heat treatment: 500°C for 24 hrs, air cool.
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