Description
Chemical Composition
The chemical composition of NILO 42 alloy is given in the following table.
| Element | Content (%) |
|---|---|
| Iron, Fe | 55 |
| Nickel, Ni | 42 |
| Others | Remainder |
Physical Properties
The following table discusses the physical properties of NILO 42 alloy.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.11 gm/cm3 | 0.293 lb/in3 |
Mechanical Properties
The mechanical properties of NILO 42 alloy after annealing are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 490 MPa | 71 ksi |
| Yield strength | 250 MPa | 36.3 ksi |
| Modulus of elasticity | 150 GPa | 21755 ksi |
Some of the other designations that are used to denote NILO 42 alloy are as below:
- UNS K94100
- ASTM F30
- B 753
- DIN 17745
- S.E.W 385
Fabrication
Cold working
Cold working is not suitable for this alloy as it tends to distort the coefficients of thermal expansion.
Annealing
NILO 42 alloy may be annealed at 850 – 1000°C (1560 – 1830°F).
Applications
The NILO 42 alloy is used in the following applications:
- Semiconductor lead frames in integrated circuits
- Bi-metal thermostat strip
- Thermostat rods
- Ceramic-to-metal seals
- Glass-to-metal seals for television tubes, fluorescent lights.
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