Ohmalloy Material Co.,Ltd
| Payment Terms | L/C, T/T, , MoneyGram,Paypal |
| Supply Ability | 30 tons per month |
| Delivery Time | 8-15 working days after payment confirmed |
| Packaging Details | paper wrap+plywood case |
| Name | 0.5″ 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Stick 1000℃ Temperature Measurement |
| Type | Type K Rod （Chromel Alumel） |
| Size | 0.5″ 12.7mm |
| Length | Coil package/1 meter/1.2 meter/1.5 meter(or customized)) |
| State | Soft, annealed/ Hard/ 1/2 Hard / 1/4 Hard |
| Surface | Oxidize/ Pickled/ Bright |
| Accuracy | Class 1(Class A) |
| Package | plywood case |
| Brand Name | OHMALLOY/OEM |
| Model Number | SP-K-12.7mm |
| Certification | CCC |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, , MoneyGram,Paypal | Supply Ability | 30 tons per month |
| Delivery Time | 8-15 working days after payment confirmed | Packaging Details | paper wrap+plywood case |
| Name | 0.5″ 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Stick 1000℃ Temperature Measurement | Type | Type K Rod （Chromel Alumel） |
| Size | 0.5″ 12.7mm | Length | Coil package/1 meter/1.2 meter/1.5 meter(or customized)) |
| State | Soft, annealed/ Hard/ 1/2 Hard / 1/4 Hard | Surface | Oxidize/ Pickled/ Bright |
| Accuracy | Class 1(Class A) | Package | plywood case |
| Brand Name | OHMALLOY/OEM | Model Number | SP-K-12.7mm |
| Certification | CCC | Place of Origin | China |
| High Light | 0.5″ 12.7mm Bare Thermocouple Wire ，KN Alumel Bare Thermocouple Wire | ||
0.5″ 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Stick 1000℃ Temperature Measurement
TYPE K (CHROMEL vs ALUMEL ) is used in oxidizing, inert or dry reducing atmospheres. It must be protected from sulfurous and marginally oxidizing atmospheres. It is reliable and has high 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 |
| Thermocouple Variety and Index | ||
| Variety | Type | Measurement Range(°C) |
| NiCr-NiSi | K | –200–1300 |
| NiCr-CuNi | E | –200–900 |
| Fe-CuNi | J | –40–750 |
| Cu-CuNi | T | –200–350 |
| NiCrSi-NiSi | N | –200–1300 |
| NiCr-AuFe0.07 | NiCr-AuFe0.07 | –270–0 |
0.5″ 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Application
The characteristic of Type K is that it has strong anti-oxidation performance, and should be used continuously in an oxidizing and inert atmosphere. The long-term use temperature is 1000℃ and the short-term 1200 ℃. It is the most widely used among all thermocouples; (it cannot be used reducing gas atmosphere).
Thermocouple Working and Measuring Temperature Range:
| Thermocouple Material | Working temperature Range and Tolerence | |||||
| Class I | Class II | |||||
| Index | Anode | Cathode | Measuring termperature | Tolerence | Measuring termperature | Tolerence |
| K | NiCr10 | NiAl2 | -40℃-1000℃ | ±1.5℃ or ±0.4%*T | 40℃-1200℃ | ±2.5℃ or 0.75%*T |
| T | Cu | CuNi40 | -40℃-350℃ | 40℃-350℃ | ±1℃ or 0.75%*T | |
| J | Fe | CuNi40 | -40℃-750℃ | 40℃-750℃ | ±2.5℃ or 0.75%*T | |
| E | NiCr10 | CuNi45 | -40℃-800℃ | 40℃-900℃ | ||
| N | NiCr14Si | NiSi4Mg | -40℃-1000℃ | 40℃-1200℃ | ±2.5℃ or 0.75%*T | |
| R | Pt-13%Rh | Pt | 0℃-1000℃ | 0℃-600℃ | ±1.5℃ | |
| S | Pt-10%Rh | 1000℃-1600℃ | ±(1+0.003) | 600℃-1600℃ | 0.25%*T | |
| B | Pt-30%Rh | Pt-6%Rh | - | - | 600℃-1700℃ | ±1.5℃ or 0.25%*T |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2008
Total Annual:
4000000-6000000
Employee Number:
20~50
Ecer Certification：
Verified Supplier
Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy. Ohmalloy Material Co.,Ltd have a full production line from melting, surface... Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy. Ohmalloy Material Co.,Ltd have a full production line from melting, surface...
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