Incoloy 890 Alloy

General Characteristics of Incoloy 890 Alloy

This alloy offers high strength and excellent resistance to oxidation, carburization and sulfidation at temperatures up to 2200ºF (1200ºC).

Chemical Analysis TYPICAL and Max values
C Carbon
0.10
Mn Manganese
1.00 max
S Sulfur
0.015 max
P Phosphorus
0.030 max
Si Silicon
1.80
Cr Chromium
25.00
Ni Ncikel
42.50
Mo Molybdenum
1.50
Cu Copper
0.75 max
Cb Columbium
0.40
Ta Tantalum
0.20
Al Aluminium
0.10
Ti Titanium
1.00 max

Applications

The alloy is used in environments where its strength and its special resistance to certain aggressive atmospheres may be used to full effect.

Forging

This alloy may be forged in the temperature range 2200/1650ºF (1205/900ºC), with heavy reductions taking place in the range 2200/1850ºF (1205/1010ºC). The alloy should not be forged below 1650ºF.

Heat treatment

Incoloy 890 alloy cannot be hardened by heat treatment, and solution annealing is carried out in a temperature range 2050/2200ºF (1120/1205ºC) where it is held for a time appropriate for section thickness, and rapidly cooled in air or quenched in water.

Machinability

The alloy is readily machined in the annealed condition. The usual recommendations for high-nickel alloys apply; positive feeds, slow speeds and rigid tools and equipment.

Weldability

The alloy may be welded by the conventional gas-shielded processes. Alloy suppliers or manufacturers should be consulted regarding welding electrodes or filler metals.

To Send a Request for Quote, please Click Here, call 973.276.5000, or fax (973) 276 – 5050