A nickel-iron controlled-expansion alloy containing 48% nickel. Its coefficient of thermal expansion is designed to match that of soft lead and soda-lime glasses. The alloy also has a high inflection point. Used for glass-to-metal seals in radio valves and incandescent electric light bulbs and for industrial thermostats that operate at temperatures up to 840°F (450°C).

UNS: K94800
W.Nr.: 1.3922, 1.3926, 1.3927

Technical Bulletin (PDF, 229KB)

Available Product Forms: Wire

Technical Papers
n/a

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