Low Expansion Alloy 42
(Nilo 42)

A nickel-iron controlled-expansion alloy containing 42% Nickel. It has a low and nominally constant coefficient of thermal expansion in the 85 deg F (20 deg C) to 570 deg F (300 deg C) temperature range.

Typical application: Medical, electronics, automotive industries in various applications including bi-metals thermostat strips, thermostat rods, electronic tubes, glass to metal and ceramic to metal seals.

To view Low Expansion Alloy 42 (Nilo 42) chemical analysis, specification or shapes & sizes please click on the tabs below.

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Rounds (mm) Dia
50.80
63.50
76.20
82.55
88.90
101.60
114.30
127.00
133.35
146.05
152.40
165.10
177.80
203.20
215.90
222.25
235.00
300.00

This is our standard size range. If you do not see the shape, size or grade you require, please contact us as we will be happy to assist you with reaching your requirements.

EN NumberUNSASTM
1.3917K94100F30
NiCrMnPSCrSiAICoFe
42.05.80.025.025.2500.03.02.05Bal

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