Invar (NILO) 42

Invar (nilo) 42 is a low expansion nickel-iron alloy containing 42% Nickel. It has a nominal and constant nominal thermal expansion coefficient as low as 300 ° C (570 ° F).

Composition Standard Specifications Key features Applications
Element Min % Max %
Ni 41.00 nominal
Fe bal
Mn 0.80
Si 0.30
C 0.05
Cr 0.25
P 0.03
S 0.03
Al 0.10
ASTM F30 W.NR 1.3917
UNS K94100
AWS 091
Coefficient of constant and nominal nominal thermal expansion from room temperature to about 300 ° C (570 ° F). Semiconductor lead frames

Thermostat rods

Metal glazing of various glass

Density 8.11 g/cm³ 0.293 lb/in³
Melting poing 1435°C 2615°F