| Customization: | Available |
|---|---|
| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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ALLOY 42
Alloy 42 / UNS K94100 / 1.3917
Alloy 42 is a low expansion alloy which is very similar to Invar 36. It has a low expansion up to about 300ºC. Principally used as strip for semiconductor lead frames in integrated circuits and bi-metal strip.
The alloy can be also used in ceramic to metal seals with alumina and the glass bulb envelope to metal seals.
Alloy 42 Chemical Composition:
| Grade | C% | P% | S% | Mn% | Si% | Al% | Co% | Ni% | Fe% |
|---|---|---|---|---|---|---|---|---|---|
| Alloy 42 | Max 0.05 | Max 0.020 | Max 0.020 | Max 0.80 | Max 0.30 | Max 0.10 | Max 1.0 | 41.0-42.5 | Bal. |
Alloy 42 Physical Properties:
| Grade | Density | Melting Point | Electric Resistivity |
|---|---|---|---|
| Alloy 42 | 8.12 g/cm3 | 1440°C | 0.61μΩ·m |
Alloy 42 Mechanical Properties:
| Grade | Tensile Strength N/mm² | |
|---|---|---|
| Soft | Hard | |
| Alloy 42 Strip | <590 | >700 |
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