Nimonic 90* W.NR: 2.4632
, UNS: N07090 , *Trade name of Special Metals Group of Companies
A Nickel-Chromium-Cobalt alloy being precipitation
hardenable, having high stress-rupture strength and creep resistance
at high temperatures (up to about 950°C). It is a widely used
and well proven alloy in high temperature conditions. Applications
include the aerospace industry, high temperature springs and
various thermal processing.
Approx
Chemical Composition (%)
Ni
Cr
Co
Ti
Al
54
18-21
15-21
2-3
1-2
Density
(g/cm3)
8.18
Melting
Point (°C)
1370
Coefficient
of Expansion
12.7 µ m/m °C At
20 - 100°C
Standards
AMS 5829
BS HR501 / 2 / 3
BS 3075 / 6 NA19
Heat Treatments
Annealed
Age at 750 °C -
4 Hrs - A/C
Spring Temper
Age at 650 °C - 4 Hrs - A/C
OR
600 °C - 16 Hrs - A/C
