Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
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Type K Ribbon 0.5mm*10mm Bare Wire Thermocouple , 50mm Chromel Alumel Strip
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 point℃) |
Tensile Strength (Mpa) |
Volume resistivity (μΩ.cm) |
Elongation rate (%) |
|
KP(Chromel) |
8.5 |
1427 |
>490 |
70.6(20℃) |
>10 |
|
KN(Alumel) |
8.6 |
1399 |
>390 |
29.4(20℃) |
>15 |
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 |