Incoloy 825

Specifications

Incoloy 825 (UNS N08825) is a nickel-iron-chromium alloy with additions of molybdenum and copper. This nickel steel alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion.

Application:
chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing, and handling of radioactive wastes.

Physical Constants
Density, lb/in3.....................................................................0.294
Mg/m3 ....................................................................8.14
Melting Range, °F .....................................................2500-2550
°C .....................................................1370-1400
Specific Heat, Btu/lb°F ....................................................0.105
J/kg°C .........................................................440
Curie Temperature, °F .......................................................<-320
°C ......................................................<-196
Permeability at 200 oersted (15.9 kA/m)...........................1.005

Limiting Chemical Composition, % of INCOLOY alloy 825
Nickel ..........................................................................38.0-46.0
Iron...............................................................................22.0 min.
Chromium....................................................................19.5-23.5
Molybdenum ...................................................................2.5-3.5
Copper ............................................................................1.5-3.0
Titanium...........................................................................0.6-1.2
Carbon........................................................................0.05 max.
Manganese ...................................................................1.0 max.
Sulfur ..........................................................................0.03 max.
Silicon ...........................................................................0.5 max.
Aluminum......................................................................0.2 max.