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Data Sheet:

Nickel Iron Alloy 42

Chemical Composition Limits

Weight % Ni C Mn P S Si Cr Al Co Fe
Alloy 42

42

min

0.005 max

0.80

max

0.025 max 0.025 max 0.030 max 0.250 max

0.150 

max

1.00

max

Remainder

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SPECIFICATION

Alloy 42 is available in Coil, Tube, Sheet, Strip and Wire.

Similar Specification

UNS: K94100

ASTM F30 and B753

DIN 17745

Werkstoff Nr. 1.3917

AFNOR NF A54-301

S.E.W. 385

NILO 42

N42

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MATERIAL USAGE

      Alloy 42 is a nickel-iron controlled-expansion alloy containing 42% nickel. It has a low and normally constant coefficient of thermal expansion from room temperature to about 300ºC (570ºF). Used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as the core of copper-clad-wire for sealing into glass envelopes of electric bulbs, radio valves, television tubes and fluorescent lights.

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MECHANICAL PROPERTIES

Alloy 42

Yield Strength (0.2% Offset)

Tensile Strength

Elongation (%)

psi MPa psi MPa 43
36,000 250 71,000 490

Mechanical Properties in the Annealed Condition.

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Alloy 42 Available in:

Many other sizes and forms available

Alloy 42 Coil

Alloy 42 Tube

Alloy 42 Sheet

Alloy 42 Strip

Alloy 42 Wire

Disclaimer    

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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