Incoloy 825 is a nickel-iron-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. Incoloy 825 maintains a stable, austenitic structure during prolonged exposure to high temperatures. Incoloy 825 is used for process piping, heat exchangers, carburizing equipment, heating-element sheathing and nuclear steam-generator tubing. Standard product forms are round, flats, forging stock, pipe, tube, plate, sheet, strip and wire.
Unit of Measure



N/A Incoloy®


N/A Sheets


N/A 0.125 inches3.1750 mm

Nickel Alloy Compositions


N/A Incoloy 825

Basic Composition

N/A 1.0% Titanium 2.0% Copper 21.5% Chrominum 28.0% Iron 3.0% Molybdenum 44.0% Nickel


N/A 0.294 lbs/in³8.14 g/cm³

ASTM Specification

N/A ASME SB-424 ASTM B424 UNS N08825

Typical Mechanical Properties

Tensile Strength

N/A 100000 psi690 MPa

Yield Strength (0.2% Offset)

N/A 45000 psi310 MPa


N/A 45 %

Melting Temperature Range

N/A 2500 to 2550 ºF1370 to 1400 ºC