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| PRODUCT DATA of Constantan |
| Material | Constantan |
| Product Datasheet | Constantan |
| General Information | Constantan is a copper-nickel alloy that contains specific minor amounts of additional elements to achieve precise values for the temperature coefficient of resistivity. |
| Product Type | Plate, Sheet, Foil, Strip, Bar, Wire |
| Chemical Composition | 55% Cu, 45% Ni |
| Name of Manufacturer | Hamilton Precision Metals
1780 Rohrerstown Road, Lancaster, PA 17602 Phone: (717) 569-7061 Fax: (717) 569-7642 |
| EXPERIENCE IN PRACTICE |
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| Equivalent Designations | A-Alloy P-alloy, CuNi44 resistance alloy, cupronickel |
| PHYSICAL PROPERTIES |
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| Specific Gravity | 8.88 |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 165 GPa |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 5.08 e-7 ohm.m |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 21.2 W/m.K |
| Thermal Expansion Coefficient | 14.9 ustrain/°C |
| Specific Heat | 0.393 J/g.K |
| Melting Range | 1210 °C |