ANSI standard Chromel / Alumel Type K Thermocouple Wire/Rod
Specification:
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(ºC) |
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 |
| EMF value Vs Pt(μV) |
| 700ºC |
800ºC |
900ºC |
1000ºC |
1100ºC |
| 22845~22999 |
26064~26246 |
29223~29411 |
32313~32525 |
35336~35548 |
| 6167~6247 |
7080~7160 |
7959~8059 |
8807~8907 |
9617~9737 |
FAQ:
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have Western union account, wire transfer for sample amount also ok.
3. Customer do not have express account. How will us arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.
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