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4J50 Controlled Expansion Iron Nickel Alloy , Forging Ceramics Glass Sealing Alloy
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|Equal Grades||FeNi50, Nilo51, N50||Spec||YB/T 5235-1993|
|Forms Of Supply||Wire, Strip, Tube, Capillary, Rod, Round Bar, Forging||Product Name||Controlled Expansion Alloys|
thermal expansion nickel,
corrosion resistant alloys
4J50 Iron Nickel Controlled Expansion Alloy for Glass and Ceramics Sealing
4J50 is used in glass-to-metal seals for some of the soft glasses and some ceramics. Produced with good machining properties, it’s manufactured in a controlled environment under controlled conditions.
YB/T 5235-1993 Sealed Iron-Nickel-Chromium, Iron-Nickel Alloys Technical Requirements
|Weight(%)||0.05 max||0.80 max||0.30 max||0.020 max||0.020 max||0.10 max||1.0 max||49.5~50.5||Rem|
4J50 is mainly used to make precision impedance diaphragm, wet spring relay, dry spring relay, and the corresponding soft glass sealing for precision length measurement.
Liner expansion rate(10-6/°C)