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OVERVIEW: Heat resistant Fe - Cr - Ni alloy with Al additions to form an aluminum scale at high temperatures for extreme oxidation, corrosion, coking, and carburization resistance at high temperatures.

TYPICAL USES: Furnace rolls, heat treatment and calciner components, petrochemical furnaces.

MetalTek Grade: HP-AL

Typical Chemical Composition (% by wt.)

Al: 1.8 - 3.0

Cr: 24.0 - 28.0

Fe: Bal

Mn: 2.0 max

Ni: 33.0 - 37.0

Si: 2.25 max

C Max: 0.33 - 0.43

Other: Nb (Cb) 0.5 max