Alloy 42 Strip | Coil

alloy 42 controlled expansion alloy strip coilAlloy 42 is an iron-nickel controlled expansion alloy.  We stock Alloy 42 in  strip / coil form in drawing and photo-etch quality. The range of sizes we stock can be found in table below.  Should you not see your size, please call us as our inventory fluctuates based on market demands.


Alloy 42 is comprised of 41% nominal nickel with the balance Iron and is also known by the following trademark names: Pernifer® 42, CarTech® Glass Seal® 42.


Our in-house capabilities provide customers added value.  Namely, with the option to have their strip / coil order slit and cut-to-length and width specifications.  Speak to the Ed Fagan Inc. sales team about all our services.


Typical applications of Alloy 42 are for integrated circuit lead frames, electron gun components, enameled resistor ferrules and molds for composite parts.  While the alloy’s expansion properties closely match 1075 glass, it has also been used in seals for the 0120 and 0010 glasses. It may also be used with hard glasses if a thin edged tubular seal is used.

Below please find a sampling of our standard stock items. Our inventory fluctuates based on market demands. If you do not see the size or form you require, we ask that you call us for current product availability.
Alloy 42 Strip | Coil ThicknessSKU NumberAlloy 42 Strip | Coil ThicknessSKU Number
0.010” Alloy 42
Strip | Coil
42NI-CO-0100.030” Alloy 42
Strip | Coil
0.015” Alloy 42
Strip | Coil
42NI-CO-0150.040” Alloy 42
Strip | Coil
0.020” Alloy 42
Strip | Coil
42NI-CO-0200.080” Alloy 42
Strip | Coil
Alloy 42 Photo-Etch CoilSKU Number
.0077" Alloy 4242NI-CNC-0077
.010" Alloy 4242NI-CNC-010

For an Alloy 42 data sheet, or any other Controlled Expansion Alloy data sheets, please go to our Alloys and Metals Literature Library section.