Incoloy 825

Incoloy 825 is composed of addition of molybdenum, copper, and titanium into its nickel-iron-chromium base. The extra metals give Incoloy 825 exceptional resistance against corrosion, even more so than other nickel alloys. It displays more resistance in aqueous conditions compared to Incoloy 800. The molybdenum and copper added to the nickel content also gives the metal protection against environments that usually reduce metals, such as sulfuric and phosphoric acids. Because of this, Incoloy 825 is commonly utilized in acidic environments, such as the pickling industry, pollution control and disposal of radioactive wastes.
The metal is pliable under both hot and cold working practices, however there are temperature limitations. Heat working should fall between 1600-2150° F. However, too far above this temperature range can result in structural changes within the metal, and should be avoided in situations where creep is disastrous. As for cold working, Incoloy 825 is more pliable under cold working than many stainless steels and so may be preferred over them.

Chemical Industry

Specifications – Incoloy 825

StandardIncoloy 825
UNSN08825
Werkstoff Nr.2.4858
ENNiCr21Mo
BSNA 16
GOSTXH38BT
ORЭП703
JISNCF 825
AFNORNC 21 FeDU

Physical Properties – Incoloy 825

Density 8.14 g/cm 3 / 0.294 lb/in 3
Melting Point 1370 -1400 (°C) / 2500 – 2550 (°F)
Specific Heat @ 70°F0.105 Btu/lb/°F
Permeability (15.9 kA/m) 1.005 (200 oersted )
Curie Temperature < -196 (°C) / < -320 (°F)
Annealed930 – 983 (°C) / 1700 – 1800 (°F)
QuenchRapid Air/Water

Chemical Composition – Incoloy 825

ElementIncoloy 825
Ni38.0 – 46.0
Cr19.5 – 23.5
Fe22.0 min
Mn1.0 max
C0.05 max
Cu1.5 – 3.0
Si0.5 max
S0.03 max
Al0.2 max
Ti0.6 – 1.2
Mo2.5 – 3.5

Oil & Gas Industry

Incoloy 825 Products

Pipes & Tubes
Tubing
Seamless Pipe
Round Bar
Square Bar
Hex Bar
Sheet
Coil
Plate
Elbow / Bends
Fitting-Flanges-Reducer
Fitting-Flanges-Stubend
Fitting-Flanges-cap
Flanges-sorf-wnrf
Fitting-Flanges-fasteners
Wire-filler
Wire-coil
Wire-spool