| Customization: | Available |
|---|---|
| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | GB, ASTM |
|
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Alumel flat strip 0.1*4mm in bright surface for thermocouple plug
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) |
97 |
|
3 |
|
|
2. Physical properties and Mechnical properties
|
Material |
Density(g/cm3) |
Melting pointºC) |
Tensile Strength (Mpa) |
Volume resistivity (μΩ.cm) |
Elongation rate (%) |
|
KP(Chromel) |
8.5 |
1427 |
>490 |
70.6(20ºC) |
>10 |
|
KN(Alumel) |
8.6 |
1399 |
>390 |
29.4(20ºC) |
>15 |
3. EMF Value range at different temperature
|
Material |
EMF value Vs Pt(μV) |
|||||
|
100ºC |
200ºC |
300ºC |
400ºC |
500ºC |
600ºC |
|
|
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 |
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