Supreme Steels

Inconel 825

Inconel 825 - Superior Corrosion Resistance

Inconel 825 is a nickel-iron-chromium alloy designed for exceptional resistance to a wide range of corrosive environments. It is particularly effective against pitting, crevice corrosion, and stress-corrosion cracking in a variety of aggressive media. This alloy also provides excellent resistance to sulfuric and phosphoric acids, as well as resistance to oxidation at higher temperatures. Inconel 825 is widely used in industries such as chemical processing, nuclear power, and marine environments, where both high strength and superior corrosion resistance are critical.
The alloy’s high nickel content makes it resistant to corrosion in reducing environments, while the chromium, molybdenum, and copper contents provide resistance to oxidative and acid environments. Inconel 825 is highly weldable and has good cold-working and hot-forming properties, making it easy to fabricate into complex shapes.

Features of Inconel 825:

Specifications:

NICKEL-BASED SUPERALLOYS - ALLOY 825

Applicable Standards ASTM B425, ASTM B423, AMS 5581, AMS 5582, UNS N08825
Carbon % 0.05 Max
Silicon % 0.50 Max
Manganese % 1.00 Max
Sulphur % 0.03 Max
Chromium % 19.5-23.5
Molybdenum % 4-Mar
Copper % 1.0-3.0
Nickel % 38-46
Tungsten %
Hardness (BHN) 200-400 BHN
Density 8.56 g/cm³
U.T.S. (N/MM²) 690-1034 MPa
Yield Strength (MPa) 310-485 MPa
Elongation 30%
Reduction Area 50%
Impact (Room Temperature) 100 J
Impact (-196°C)