Nickel 270• • Trade name of Special Metals Group of Companies
W.NR 2.4050
UNS N02270
AWS 074
UNS N02270
AWS 074
A high purity grade of nickel that is made by powder
metallurgy.
Applications include:
- Electrical Resistance Thermometers
- Various other electrical
and electronic applications
| Approximate Chemical Composition | |
| Ni | 99.9% min |
| DENSITY | 8.89 g/cm3 | 0.321 lb/in3 |
| MELTING POINT | 1454oC | 2650oF |
| COEFFICIENT OF EXPANSION | 13.3 µm/m °C ( 20 - 100°C) |
7.4 x 10-6 in/in
°F ( 70 - 212°F) |
| MODULUS OF RIGIDITY | 82 kN/m2 | 11893 ksi |
| MODULUS OF ELASTICITY | 207 kN/m2 | 30000 ksi |
|
ELECTRICAL RESISTIVITY |
|
| 7.5 μW • cm | 45 ohm • circ mil/ft |
|
THERMAL CONDUCTIVITY |
|
| 86 W/m • oC | 595 btu • in/ft2 • h • oF |
| CONDITION |
APPROX TENSILE STRENGTH |
APPROX SERVICE TEMPERATURE |
|||
| Annealed | 300-450 N/mm2 | 44 - 65 ksi | Tensile strength and elongation drop significantly at temperatures above 315°C (600°F). Service temperature is dependent on environment, load and size range. | ||
| Hard Drawn | 600-800 N/mm2 | 87 - 116 ksi | |||
| STANDARDS | ||
| - | ||
