ANSI Standard Type K Thermocouple Cable Nichrome Wire Customize Color
Price:
20-50USD/KG
MOQ:
20KG
Delivery Time:
7-10 days
Brand:
OHMALLOY
Product Description
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 (%) |
| 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 |
4.The available thermocouple type and alloy material:
| Name and code of alloy wires | |||
| Positive | Negative | ||
| Name | Code | Name | Code |
| NiCr10 (Chromel) | KP |
NiSi3 /(Alumel) (China standard) |
KN |
|
NiAl/(Alumel) (IEC standard) |
KN | ||
| NiCr14.2Si | NP | NiSi4 | NN |
| NiCr10 (Chromel) | EP | CuNi45 (Constantan) | EN |
| Fe | JP | CuNi45 (Constantan) | JN |
| Cu | TP | CuNi45 (Constantan) | TN |
5.Thermocouple wire electromotive force (EMF) Tolerance:
| Thermocouple Type | Grade | Temperature range ℃ | Electromotive force(EMF) Tolerance | |
| IEC (EN)60584 | ASTM E230 | |||
| Type K & Type N | Ⅰ | -40～1100 | ±1.5℃ or ±0.4%t | ±1.1℃ or ±0.4% |
| Ⅱ | -40～1300 | ±2.5℃ or ±0.75%t | ±2.2℃ or ±0.75% | |
| Type E | Ⅰ | -40～1100 | ±1.5℃ or ±0.4%t | ±1.0℃ or ±0.4% |
| Ⅱ | -40～1300 | ±2.5℃ or ±0.75%t | ±1.7℃ or ±0.5% | |
| Type J | Ⅰ | -40～750 | ±1.5℃ or ±0.4%t | ±1.1℃ or ±0.4% |
| Ⅱ | -40～750 | ±2.5℃ or ±0.75%t | ±2.2℃ or ±0.75% | |
| Type T | Ⅰ | -40～350 | ±0.5℃ or ±0.4%t | ±0.5℃ or ±0.4% |
| Ⅱ | -40～350 | ±1.0℃ or ±0.75%t | ±1.0℃ or ±0.75% | |
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Company
Ohmalloy Material Co.,Ltd
Location
Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Contact Person
Qiu