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| Categories | Bare Thermocouple Wire |
|---|---|
| Brand Name: | OHMALLOY |
| Model Number: | SP-EX-BW |
| Certification: | ISO9001:2018 |
| Place of Origin: | China |
| MOQ: | 50KG |
| Payment Terms: | L/C, T/T, Western Union, MoneyGram,Paypal |
| Supply Ability: | 10 Tons per Month |
| Delivery Time: | 7-25 working days after payment confirmed |
| Packaging Details: | Spool+Plywood case |
| Name: | Type E Chromel Constantan Thermocouple Bare Wire |
| Conductor Material: | Chromel Constantan(Ni90Cr10,Cu55Ni45) |
| Type: | Type E Thermocouple Bare wire |
| Wire Size Range: | 0.08-12mm |
| Accuracy: | Class 1 |
| Surface: | Bright or Oxidized |
| Package: | Spool or Coil |
| Company Info. |
| Ohmalloy Material Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
TYPE E (CHROMEL vs Constantan) 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 | |
| EP(Chromel) | 90 | 10 | |||
| EN(Constantan) | 45 | 55 | |||
2. Physical properties and Mechanical properties
Material | Density(g/cm3) | Melting point℃) | Tensile Strength(Mpa) | Volume resistivity(μΩ.cm) | Elongation rate (%) |
| EP(Chromel) | 8.5 | 1427 | >490 | 70.6(20℃) | >25 |
| EN(Constantan) | 8.8 | 1220 | >390 | 49.0(20℃) | >25 |
3. EMF Value range at different temperature
| Material | EMF value Vs Pt(μV) | |||||
| 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | |
| KP(Chromel) | 2769~2859 | 5921~6019 | 9272~9374 | 12709~12819 | 16144~16282 | 19537~19699 |
| EN(Constantan) | 3499~3561 | 7389~7513 | 11647~11779 | 16109~16255 | 20699~20885 | 25362~25588 |
| EMF value Vs Pt(μV) | ||||
| 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ |
| 22859~23043 | 26102~26308 | |||
| 30030~30292 | 34664~34960 | |||
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