UNS N19903
Alloy 903, Incoloy 903 ®

Quick facts & description:

UNS N19903, also known as Alloy 903, Incoloy 903 ®, has an outstanding 
constant low coefficient of thermal expansion, a constant modulus of elasticity, combined with an high strength.
This make it excellent for application in: land based gas turbines and aerospace jet engines, into shrouds, shafts, casings, vane rings,
 etc. and in defense & military as thrust chambers of rocket engines.

Main chemistry:

Ni 36-40% ; 
Nb 2.4-3.5% ; 
Ti 1-1.85% ; 
Co 13-17% ;
 Fe balance

Main fields of application:

Aerospace, Energy

Our products in UNS N19903, Alloy 903, Incoloy 903 ® are:

• Ingots
• Billets
• Bars
• Forgings
• Rings

back to: Nickel & Cobalt Alloys info