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20AWG Type K Thermocouple Cable KP KN Thermocouple cable/wire
Alumel(KN)is an alloy consisting of approximately 95% nickel, 2% manganese, 2% aluminium and 1% silicon. This magnetic alloy is used for thermocouples and thermocouple extension wire. In thermocouples, alumel is often used together with chromel to form type K thermocouples
(Common Name: KN, NiAl, NiSi3,Thermothal N)
| Nickel | 95 | Manganese | 2 |
| Aluminium | 2 | Silicon | 1 |
Or
| Nickel | 97 | Manganese | 0 |
| Chromium | 3 | Silicon | 0 |
Properties of Alumel:
| CHARACTERISTICS: | |
| Temperature coefficient | 0.00032 K−1 |
| Electrical resistivity | 0.294 µΩ m |
| Mechanical properties | |
| Elongation at break | <44% |
| Thermal conductivity | 30 W/m/K |
| Tensile strength | 620–780 MPa |
Style of supply
| Alloys Name | Type | Dimension | ||
| Chromel-W | Wire | D=0.05mm~12mm | ||
| Chromel-R | Ribbon | W=0.5-10m | T=0.05~1.5mm | |
| Chromel-S | Strip | W=10~150mm | T=0.1~3.0 | |
| Chromel-B | Bar | Dia=5-12mm | L=50~1500 | |
