| Customization: | Available |
|---|---|
| Product Type: | Wire |
| Material: | Copper&Nickel Alloy |
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AWG 20 Constantan wire for Type E/J/T thermocouple cable Copper&Nickel alloy wire
OhmAlloy049 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C
TYPE T (Copper vs Constantan) is used or service in oxidizing, inert or reducing atmospheres or in vacuum. It is highly resistant to corrosion from atmospheric moisture and condensation and exhibits high stability at low temperatures. It is the only type with limits of error guaranteed for cryogenic temperatures.
1. Chemical Composition
| Material | Chemical composition (%) | ||||
| Ni | Cr | Cu | Mn | Al | |
| TP(Copper) | 100 | ||||
| TN(Constantan) | 45 | 55 | |||
2. Physical properties and Mechnical properties
|
Material |
Density(g/cm3) |
Melting point(ºC) |
Tensile Strength(Mpa) |
Volume resistivity(μΩ.cm) |
Elongation rate (%) |
| TP(Chromel) | 8.9 | 1084 | >196 | 1.71(20ºC) | >30 |
| TN(Constantan) | 8.8 | 1220 | >390 | 49.0(20ºC) | >25 |
3. EMF Value range at different temperature
| Material | EMF value Vs Pt(μV) | |||||
| -196ºC | -79ºC | 100ºC | 150ºC | 200ºC | 250ºC | |
| TP(Chromel) | -212 | -332 | 761~785 | 1263~1287 | 1825~1849 | 2450~2474 |
| TN(Constantan) | -5327 | -2426 | 3493~3517 | 5412~5448 | 7420~7582 | 9507~9595 |
| EMF value Vs Pt(μV) | ||||
| 300ºC | 350ºC | 400ºC | 500ºC | 600ºC |
| 3137~3161 | 3880~3904 | |||
| 11655~11771 | 13864~13988 | |||
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