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Brand Name : OHMALLOY/OEM
Model Number : SP-K-B
Certification : ISO9001:2018
Place of Origin : China
MOQ : 5KG
Payment Terms : L/C, T/T, , MoneyGram,Paypal
Supply Ability : 30 tons per month
Delivery Time : 5-18 working days after payment confirmed
Packaging Details : Coil+plywood case
Name : K Type Thermocouple Bare Wire
Size : 8AWG(3.2mm)/16AWG(1.29mm)/20AWG(0.8mm)
Shape : Round Wire
Surface : Bright
Accuracy : Class 1
Package : Coil+plywood Case
Type K Thermocouple
TYPE K (CHROMEL vs ALUMEL ) is used in oxidizing, inert or dry reducing atmospheres. Exposure to vacuum limited to short time periods. Must be protected from sulfurous and marginally oxidizing atmospheres. Reliable and accurate at high temperatures.
1. Chemical Composition
Material | Chemical composition (%) | ||||
Ni | Cr | Si | Mn | Al | |
KP(Chromel) | 90 | 10 | |||
KN(Alumel) | 95 | 1-2 | 0.5-1.5 | 1-1.5 |
2. Physical properties and Mechnical properties
Material |
Density (g/cm3) |
Melting point℃) |
Tensile Strength (Mpa) |
Volume resistivity(μΩ.cm) |
Elongation rate (%) |
Diameter tolerance(mm) |
KP(Chromel) | 8.5 | 1427 | >490 | 70.6(20℃) | >10 | +/- 0.02 |
KN(Alumel) | 8.6 | 1399 | >390 | 29.4(20℃) | >15 | +/- 0.02 |
3. EMF Value range at different temperature
Material | EMF value Vs Pt(μV) | |||||
100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | |
KP(Chromel) | 2816~2896 | 5938~6018 | 9298~9378 | 12729~12821 | 16156~16266 | 19532~19676 |
KN(Alumel) | 1218~1262 | 2140~2180 | 2849~2893 | 3600~3644 | 4403~4463 | 5271~5331 |
EMF value Vs Pt(μV) | ||||
700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ |
22845~22999 | 26064~26246 | 29223~29411 | 32313~32525 | 35336~35548 |
6167~6247 | 7080~7160 | 7959~8059 | 8807~8907 | 9617~9737 |
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KP KN Chromel Alumel K Type Bare Thermocouple Wire 20AWG Images |