General Description
Alloy 52 is a nickel-iron controlled expansion alloy containing 51% nickel, it is used for glass to metal seals for electronic tubes, compact fluorescent lamps, and specialty hermetic devices.
Chemical Composition
| Grade | C% | P% | S% | Mn% | Si% | Ni% | Fe% |
|---|---|---|---|---|---|---|---|
| Alloy 52 | Max 0.05 | Max 0.02 | Max 0.02 | Max 0.80 | Max 0.30 | 51.5-52.5 | Bal. |
Designations
UNS N14052
Specifications
ASTM F30
Wire, Strip, Bar, Thin wall tube are available
Physical Properties
Density： 8.25 g/cm3
Melting Point: 1430 °C
Mechanical Properties
σb/MPa |
σP0.2/MPa |
δ/% |
|
| Annealed | 550 | 276 | 35 |
Linear Coefficient of Thermal Expansion ā,10-6/℃
| Grade | 20-100℃ | 20-200℃ | 20-300℃ | 20-350℃ | 20-400℃ | 20-450℃ | 20-500℃ | 20-600℃ |
|---|---|---|---|---|---|---|---|---|
| Alloy 52 | 10.3 | 10.4 | 10.2 | 10.3 | 10.3 | 10.3 | 10.3 | 10.8 |