Nilo 42 Controlled Expansion Sealing Alloy W.Nr 1.3917 ASTM F30 UNS K94100

NILO 42, also known as UNS K94100/W. Nr. 1.3917, is a binary FeNi alloy containing 42% nickel.

It has a low and nominally constant, coefficient of expansion in the range of 20-300°C (85-570°F).

Chemical composition

Applications:

• Tooling for aerospace composites
• Thermostat rods
• Semiconductor lead frames
• Thermostatic bi-metal strip
• Glass sealing applications

Typical Thermal Expansion of NILO 42

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