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

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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