NILO® Alloy 42
1.3917 / UNS K94100
A binary nickel-iron alloy containing 42% nickel. It has a low coefficient of thermal expansion (CTE) over the temperature range 20-300°C. Due to this stable CTE it is widely used as tooling for the production of carbon-fibre composites for aerospace and autosport applications. It is used for glass sealing applications in electronic components and vacuum devices, for thermostat rods and in thermostatic bimetallic strip.
Stock program
- 2.50 mm
- 4.75 mm
- 6.35 mm
- 9.52 mm
- 12.00 mm
- 16.00 mm
- 20.00 mm
- 25.40 mm
- 31.75 mm
Details at a glance
Chemical composition
Fe
Balance
Ni¹
42.00 %
Co
max. 1.00 %
Mn
max. 0.80 %
Si
max. 0.30 %
Cr
max. 0.25 %
Al
max. 0.15 %
C
max. 0.05 %
S
max. 0.035 %
P
max. 0.025 %
¹ Nominal value; adjusted to meet expansion requirements
Density
g/cm³
8.11
lb/in³
0.293
® trademarks of the Special Metals Corporation group of companies
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