L type thermocouple wire
TYPE L (CHROMEL vs Copel) may be used in oxidizing, inert or dry reducing atmospheres, or for short periods of time under vacuum. Must be protected from sulfurous and marginally oxidizingatmospheres. Produces the highest EMF per degree o any standardized thermocouple.
1. Chemical Composition
Material | Chemical composition (%) | ||||
Ni | Cr | Cu | Mn | Al | |
LP(Chromel) | 90 | 10 |
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LN(Copel) | 44 |
| Bal | 0.5-1 |
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2. Physical properties and Mechnical propertie
Material | Density(g/cm3) | Melting point℃) | Tensile Strength(Mpa) | Volume resistivity (μΩNaN) | Elongation rate (%) |
LP(Chromel) | 8.5 | 1427 | >490 | 70.6(20℃) | >25 |
LN(Copel) | 8.8 | 1220 | >390 | 49.0(20℃) | >25 |
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