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. 

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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

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Downloads

Downloads

Data sheet Nickel Alloy 42Data sheet Nickel Alloy 42

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