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Cast Grade: 50Cr-50Ni-Nb

OVERVIEW: A nickel based high temperature corrosion resistant specialty  alloy that resists fuel ash corrosion, specifically sulfur and vanadium attack. Service limit 950 degrees Celsius (1740 degrees Fahrenheit).

TYPICAL USES: Petrochemical furnaces.

MetalTek Grade: MTEK 50-50Nb

Similar Specifications

Cast UNS: R20501

Cast Grade: 50Cr-50Ni-Nb

Cast ASTM: A560

Wrought Grade: IN 657 (Cast)

Typical Chemical Composition (% by wt.)

Cr: 47 - 52

Mn: 0.30

Ni: Bal

Si: 0.50

C Max: 0.10

Other: Nb 1.4-1.7

Minimum Mechanical Properties

Tensile, ksi: 80

Tensile, MPa: 550

Yield, ksi: 50

Yield, MPa: 350

Elongation %: 5

Heat Treatment: NOT HEAT TREATED