Invar® 36 Alloy Properties
(Also known as Invar, NILO® 36, Pernifer® 36, and Invar Steel)
Invar® 36 Alloy Physical Properties
| Density |
lb/cu in |
0.291 |
| Specific Gravity |
|
8.05 |
| Curie Temp |
°F |
535 |
| |
°C |
279 |
| Melting Point |
°F |
2600 |
| |
°C |
1427 |
| Electrical Resistivity |
Micro-ohm-cm |
84 |
| |
Micro-ohm-cm |
495 |
| Thermal Conductivity |
W/cm °C |
0.10 |
| |
BTU-in/sq. ft-hr- |
72.6 |
| Specific Heat |
Cal/g- °C |
0.123 |
| |
BTU/lbm- °F |
0.123 |
| Thermal Expansion |
ppm/°F (75°F to 842°F) |
4.9 |
| |
ppm/°C (25°C to 450°F) |
8.9 |
Invar® 36 Alloy Mechanical Properties
| Tensile Strength |
ksi |
75 |
| |
MPa |
518 |
| Yield Strength |
ksi |
40 |
| |
MPa |
276 |
| Elongation |
% in 2 in. |
34 |
| Typical Hardness Ann. |
Rockwell |
HRB 80 |
| Modulus of Elasticity |
Mpsi |
20.5 |
| |
kMPa |
141 |
Invar® 36 Alloy Chemistry
maximum % unless noted
| Iron |
Bal |
| Nominal Nickel |
36 |
| Nominal Cobalt |
0.5 |
| Carbon |
0.05 |
| Silicon |
0.40 |
| Sulfur |
0.015 |
| Chromium |
0.25 |
Invar® 36 Alloy Linear Coefficient of Thermal Expansion
| Degree C |
|
Degree C |
|
| 30-100 |
1.9 |
30-450 |
-- |
| 30-150 |
2.4 |
30-475 |
-- |
| 30-200 |
3.0 |
30-500 |
10.5 |
| 30-250 |
4.4 |
30-525 |
-- |
| 30-300 |
6.1 |
30-550 |
-- |
| 30-325 |
-- |
30-600 |
11.8 |
| 30-350 |
7.5 |
30-700 |
-- |
| 30-375 |
-- |
30-800 |
-- |
| 30-400 |
8.7 |
30-900 |
-- |
| 30-425 |
-- |
30-1000 |
-- |
