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Cast Grade: Alloy 188

OVERVIEW: A nickel alloy that is oxidation resistance with high temperature strength. It has good ductility even when exposed to temperatures up to 1600 degrees Fahrenheit (870 degrees Celcius).

TYPICAL USES: Turbine engine components.

MetalTek Grade: HS188

Similar Specifications

Cast Grade: Alloy 188

Wrought UNS: R30188

Military / AMS: AMS 5772 (bars, forgings and rings)

Typical Chemical Composition (% by wt.)

Cr: 20.0 - 24.0

Fe: 3.0 max

Mn: 1.25 max

Ni: 20.0 - 24.0

Si: 0.20 - 0.50

W: 13.0 - 16.0

C Max: 0.05 - 0.15

Other: Co Bal; La; B

Minimum Mechanical Properties

Tensile, ksi: 85

Tensile, MPa: 590

Yield, ksi: 55

Yield, MPa: 380

Elongation %: 15

Heat Treatment: Solution Annealed