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.
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Click here to download an Alloy 42 data sheet.