Physical Properties of Nickel Alloy 400 in the Annealed Condition at -20°F to +100°F
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Tensile Strength |
Yield Strength |
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| Alloy |
UNS Designation |
Spec. |
psi |
MPa |
ksi |
psi |
MPa |
ksi |
Elongation in 2 in. (min.) % |
Grain Size Req. |
Max. Hardness |
Modulus of Elasticity (x106psi) |
Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) |
Thermal Conductivity (BTU-in/ ft2-h-°F) |
| 400 |
N04400 |
B725, B730 |
70,000* |
480* |
70 |
28,000* |
195* |
28 |
35* |
— |
— |
26 |
7.7 |
168 |
*Annealed condition
Composition of Nickel Alloy 400 tubing and pipe
| Grade |
400 |
| UNS Designation |
N04400 |
| Nickel (Ni) |
63.0 Min. (plus Cobalt) |
| Chromium (Cr) |
— |
| Iron (Fe) |
2.5 Max. |
| Molybdenum (Mo) |
— |
| Titanium (Ti) Max. |
— |
| Aluminum (Al) Max. |
— |
| Cobalt (Co) Max. |
— |
| Tungsten (W) |
— |
| Vanadium (V) Max. |
— |
| Copper (Cu) Max. |
28.0 – 34.0 |
| Manganese (Mn) Max. |
2.00 |
| Niobium (Nb) plus Tantalum |
— |
| Carbon (C) Max. |
0.3 |
| Nitrogen (N) Max. |
— |
| Silicon (Si) Max. |
0.5 |
| Sulphur (S) Max. |
0.024 |
| Phosphorous (P) Max. |
— |
| Other Elements |
— |
Nickel Alloy 400 Product Range
| Alloy |
UNS Designation |
Werkstoff NR. |
Specifications* |
| 400 |
N04400 |
2.4360 |
B275, B730 |
*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.
