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| Min. Order: | 1 Kilogram |
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MAIN FEATURES AND PURPOSES OF K TYPE Thermocouple Wire
NiCr-CuNi ( E type) Thermocouple wire is used widely in all basemetal thermocouple, at temperature above 500ºC. the main chemical composition of positive leg NiCR(EP) are Ni(about 90%) and Cr(about 10%), the negative leg CuNi (EN) is NI(45%) and Cu(55%). The operating temperature range is -200-900°C ( for short time) and 0-900°C( for long time).
E Type Thermocouple Wire has the largest EMF output and highest sensitivity , so it is ideal fo measuring small temperature change. It also has good stability in the low temperature range up to 300°C, and good property of anti corrosion in humidity atmosphere. It is recommended for oxidizing or inert atmospheres. But this material can not be used directly in the atmosphere of sulphur gases.
MAIN CHEMICAL COMPOSTION% AND physical properties.
| type | main chemical compostion(%) | ||||
| Ni | CR | Cu | Si | Al | |
| NI-CR (EP) | 90 | 10 | / | / | / |
| CU-NI (EN) | 45 | / | 55 | / | / |
| type | main physical properties | ||||
| density at 20°C | melting point (°C) | tensile strength(soft annealed at 20°C)/MPA | elongation(annealed/soft at 20°C/% | resistivity at 20°C μ.Ω.M | |
| NI-CR (EP) | 8.5 | 1427 | ≥490 | ≥10 | 0.71 |
| CU-NI (EN) | 8.6 | 1220 | ≥390 | ≥25 | 0.50 |
| type | standard:IEC 60584-1 | ||||
| EMF VERSUS Pt.67(MV) | |||||
| 100°C | 200°C | 400°C | 600°C | 800°C | |
| NI-CR (EP) | 2.784-2.844 | 5.938-6.002 | 12.709-12.819 | 19.537-19.699 | 26.102-26.308 |
| CU-NI (EN) | 3.467-3.543 | 7.410-7.492 | 16.109-16.255 | 25.362-25.588 | 34.664-34.960 |
| NICR(EP-CUNI(EN) | 6.251-6.387 | 13.348-13.494 | 28.818-29.074 | 44.899-45.287 | 60.766-61.268 |
PRODUCTS PICTURES
Product Categories : Thermocouple Wire
