Shanghai Tankii Alloy Material Co.,Ltd
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IEC Standard 3.0mm Type K Chromel Alumel Thermocouple Bare Wire
A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction. A thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect, and this voltage can be interpreted to measure temperature. Thermocouples are a widely used type of temperature sensor.
Commercial thermocouples are inexpensive, interchangeable, are supplied with standard connectors, and can measure a wide range of temperatures. In contrast to most other methods of temperature measurement, thermocouples are self powered and require no external form of excitation. The main limitation with thermocouples is precision; system errors of less than one degree Celsius (°C) can be difficult to achieve.
Thermocouples are widely used in science and industry. Applications include temperature measurement for kilns, gas turbine exhaust, diesel engines, and other industrial processes. Thermocouples are also used in homes, offices and businesses as the temperature sensors in thermostats, and also as flame sensors in safety devices for gas-powered appliances.
| Grade | IEC | ASTM | DIN | GOST |
| K | Cromel-Alumel | Cromel-Alumel | Cromel-Alumel | Cromel-Alumel |
| N | Nicrosil-Nisil | Nicrosil-Nisil | Nicrosil-Nisil | Nicrosil-Nisil |
| E | Cromel-Constantan | Cromel-Constantan | Cromel-Constantan | Cromel-Constantan |
| J | Iron-Constantan | Iron-Constantan | Iron-Constantan | Iron-Constantan |
| T | Copper-Constantan | Copper-Constantan | Copper-Constantan | Copper-Constantan |
| B | PtRh30-PtRh6 | PtRh30-PtRh6 | PtRh30-PtRh6 | PtRh30-PtRh6 |
| R | PtRh13-Pt | PtRh13-Pt | PtRh13-Pt | PtRh13-Pt |
| S | PtRh10-Pt | PtRh10-Pt | PtRh10-Pt | PtRh10-Pt |
| RC/SC | Cu-CuNi (Copper-Coppernickel) | Cu-CuNi (Copper-Coppernickel) | Cu-CuNi (Copper-Coppernickel) | Cu-CuNi (Copper-Coppernickel) |
| KX | Cromel-Alumel | Cromel-Alumel | Cromel-Alumel | Cromel-Alumel |
| NX | Nicrosil-Nisil | Nicrosil-Nisil | Nicrosil-Nisil | Nicrosil-Nisil |
| EX | Cromel-Constantan | Cromel-Constantan | Cromel-Constantan | Cromel-Constantan |
| JX | Iron-Constantan | Iron-Constantan | Iron-Constantan | Iron-Constantan |
| TX | Copper-Constantan | Copper-Constantan | Copper-Constantan | Copper-Constantan |
