HASTELLOY® C-276 alloy is a nickel-chromium-molybdenum alloy that has high corrosion resistance in many chemical environments. This alloy is resistant to oxidation, pitting, and stress-corrosion cracking when exposed to elevated temperatures.
Chemical composition
| Composition |
UNS N10276 |
| Molybdenum | 15.0 - 17.0 |
| Chromium | 14.5 - 16.5 |
| Iron | 4.0 - 7.0 |
| Tungsten | 3.0 - 4.5 |
| Cobalt | 2.5 max |
| Carbon | 0.02 max |
| Silicon | 0.08 max |
| Manganese | 1.0 max |
| Vanadium | 0.35 max |
| Phosphorus | 0.030 max |
| Sulfur | 0.030 max |
| Nickel | Balance |
Physical properties
| Metric | English | |
| Density | 8.89 g/cm³ | 0.321 lbs/in³ |
| Modulus of Elasticity | 205 GPa | 29.8 Mpsi |
| Electrical Resistivity | 130 µohm*cm | 51 µohm*in |
| Thermal Conductivity | 9.8 W/(m*°C) | 67.9 BTU*in/(hr*ft²*°F) |
| Coefficient of thermal expansion | 11.2 µm/(m*°F) | 6.2 µin/(in*°F) |
*Values calculated at 22 °C [72 °F]
Mechanical properties
| Cold worked % |
Yield strength |
Ultimate tensile strength |
Elongation |
| 0 | 455 MPa [66 ksi] | 842 MPa [122 ksi] | 40 |
| 40 | 1310 MPa [190 ksi] | 1531 MPa [222 ksi] | 3.8 |
| 55 | 1531 MPa [222 ksi] | 1758 MPa [255 ksi] | 3.4 |
|
75 |
1724 MPa [250 ksi] | 1999 MPa [290 ksi] | 3.9 |
|
* Values are typical and may not represent all diameters. Test method will affect results. |
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