Nilo 42 (For Springs)
A Nickel-Iron, low expansion alloy containing 42% Nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 300°C (570°F).
Nilo 42 is also known as Invar 42, Pernifer 40, Dilaton 42, and Glass Sealing 42.
Nickel Base Wire for wire springs, flat springs and wire products
Key Features
- Low and nominally constant coefficient of thermal expansion from room temperature to about 300°C (570°F).
Typical Applications
Semiconductor lead frames
Thermostat rods
Various glass to metal seals
Approx. Operating Temperature
Chemical Composition
| Element | Ni | Cr | Fe | Mn | C | Si | S | P | Al |
|---|---|---|---|---|---|---|---|---|---|
| Min % | 41.00 nominal | – | bal | – | – | – | – | – | – |
| Max % | 0.25 | bal | 0.80 | 0.05 | 0.30 | 0.03 | 0.03 | 0.10 |
Wire Type
- Round
- Flat Wire
- Shaped Wire
- Rope/Strand
Specifications
- ASTM F30
Designations
- W.NR 1.3917
- UNS K94100
- AWS 091
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