Alloy 42

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Alloy 42

Alloy 42 is an iron-nickel alloy containing 42% nickel. It exhibits low thermal expansion characteristics over a range of temperatures, which makes it particularly suitable for use in glass and ceramic seals. It finds application in a variety of electronic components and lead frames.

Related Specifications of Alloy 42

  • K94100
  • ASTM F30
  • 1.3917
  • NF A54-301
  • FeNi42

Nominal Composition of Alloy 42

Fe 58%, Ni 41%, Mn 0.8%

Mechanical Properties of Alloy 42

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
500 300 30 140HV

Key Features of Alloy 42

  • Low coefficient of thermal expansion matched to silicon, ceramic materials such as alumina and beryllia and vitreous glass compounds
  • Low thermal expansion characteristics over a range of temperatures

Applications of Alloy 42

General | Semiconductor packages, electronic tubes, CRT electron guns and automotive and industrial lamps

Columbia Metals – a leading supplier of Alloy 42

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of Alloy 42 and other high quality specialist engineering alloys.

To buy or learn more about Alloy 42 contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
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