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Basic Info.
Model NO.
K /N/ E /J /T
Material Shape
Round Wire
Range of Application
Heating, Temperature Measurement
Certification
ISO9001, RoHS
Brand
Liqun
Diameter
0.2-3.2mm
Positive Pole
Nickel Chromel/Pure Iron/Copper Wire
Negative Pole
Copper Nickel/Nickel Aiuminum/Copper Nickel/
OEM/ODM
Yes
MOQ
100kg
Temperature Range
-270~1372
Surface
Bright/ oxidized thermocouple wire
Sample
Available
Transport Package
Plywood Cases
Specification
3.2/2.5/2.0/1.29/0.813/0.5/0.3/0.2mm
Trademark
Liqun
Origin
China
HS Code
75052200
Production Capacity
60000kg/Month
Product Description
Manufacturer Thermocouple Bare Alloy Wire (Type K/N/E/J/T)
Type N thermocouple has been developed which provides much longer life, longer exposure to high temperature and better reliability of EMF drift and short term EMF changes.
Type E thermocouple has the highest EMF output per degree of all the referenced thermocouples.
Type J Thermocouple is frequently used for its low cost and high EMF It can be used in oxidizing conditions up to 760°C. For higher temperatures, it is recommended to use large wire diameters.Type J thermocouple is suitable for oxidizing, reducing inert atmosphere or vacuum.
Type T thermocouple is suitable for oxidizing, reducing inert atmosphere or vacuum.
1.Chemical composition and mechanical properties
| Product | Chemical Composition/% | Density (g/cm3) | Melting point (ºC) | Resistivity (μΩ.cm) | Tensile Strength (Mpa) | |||||||
| Ni | Cr | Si | Al | Mg | Fe | Cu | ||||||
| KP(+) Nickel Chrome | 90 | 10 | - | - | - | - | - | 8.7 | 1427 | 70 | ≥490 | |
| KN(-) Nickel Silicon | 97 | - | 3 | - | - | - | - | 8.6 | 1399 | 29 | ≥390 | |
| KN(-) Nickel Aluminum | 96 | - | 1 | 3 | - | - | - | 8.6 | 1399 | 29 | ≥390 | |
| NP(+) Nickel Chrome Silicon | Blance | 13.7-14.7 | 1.2-1.6 | - | <0.01 | - | - | 8.7 | 1427 | 70 | ≥490 | |
| NN(-) Nickel Silicon Magnesium | Blance | <0.02 | 4.2-4.6 | - | 0.5-1.5 | - | - | 8.6 | 1399 | 29 | ≥390 | |
| EP(+) Nickel Chrome | 90 | 10 | - | - | - | - | - | 8.5 | 1427 | 70.6 | ≥490 | |
| EN(-) Copper Nickel | 45 | - | - | - | - | - | 55 | 8.8 | 1220 | 49 | ≥390 | |
| JP(+) Pure Iron | - | - | - | - | - | 100 | - | 7.8 | 1402 | 12 | ≥240 | |
| JN(-) Copper Nickel | 45 | - | - | - | - | - | 55 | 8.8 | 1220 | 49 | ≥390 | |
| TP(+) Copper Wire | - | - | - | - | - | - | 100 | 8.9 | 1084 | 1.71 | ≥196 | |
| TN(-) Copper Nickel | 45 | - | - | - | - | - | 55 | 8.8 | 1220 | 49 | ≥390 | |
2.Maximum operating temperatures
| Product | Alloy wire Dia/mm | The long-term operating temperatures/°C | The short-term operating temperatures/°C |
| KP/KN | 0.3 | 700 | 800 |
| 0.5 | 800 | 900 | |
| 0.8,1.0 | 900 | 1000 | |
| 1.2,1.6 | 1000 | 1100 | |
| 2.0,2.5 | 1100 | 1200 | |
| 3.2 | 1200 | 1300 | |
| NP/NN | 0.3 | 700 | 800 |
| 0.5 | 800 | 900 | |
| 0.8,1.0 | 900 | 1000 | |
| 1.2,1.6 | 1000 | 1100 | |
| 2.0,2.5 | 1100 | 1200 | |
| 3.2 | 1200 | 1300 | |
| EP/EN | 0.3,0.5 | 350 | 450 |
| 0.8,1.0,1.2 | 450 | 550 | |
| 1.6,2.0 | 550 | 650 | |
| 2.5 | 650 | 750 | |
| 3.2 | 750 | 900 | |
| JP/JN | 0.3,0.5 | 300 | 400 |
| 0.8,1.0,1.2 | 400 | 500 | |
| 1.6,2.0 | 500 | 600 | |
| 2.5,3.2 | 600 | 750 | |
| TP/TN | 0.2,0.3 | 150 | 200 |
| 0.5,0.8 | 200 | 250 |
3.EMF reference table (μV)
| Product | Operating temperatures/°C | Nominal value of thermoelectric EMF | Level I | |
| Tolerance | Range of EMF | |||
| KP/KN | 100 | 4 096 | ±46 | 4 050-4 142 |
| 200 | 8 138 | ±44 | 8 094-8 182 | |
| 300 | 12 209 | ±50 | 12 159-12 259 | |
| 400 | 16 397 | ±68 | 16 329-16 465 | |
| 500 | 20 644 | ±85 | 20 559-20 729 | |
| 600 | 24 905 | ±102 | 24 803-25 007 | |
| 700 | 29 129 | ±117 | 29 012-29 246 | |
| 800 | 33 275 | ±131 | 33 144-33 406 | |
| 900 | 37 326 | ±144 | 37 182-37 470 | |
| 1000 | 41 276 | ±156 | 41 120-41 432 | |
| 1100 | 45 119 | ±167 | 44 952-45 286 | |
| 1200 | 48 838 | - | - | |
| 1300 | 52 410 | - | - | |
| Product | Operating temperatures/°C | Nominal value of thermoelectric EMF | Level I | |
| Tolerance | Range of EMF | |||
| NP/NN | 100 | 2774 | ±44 | 2730-2818 |
| 200 | 5913 | ±49 | 5864-5962 | |
| 300 | 9341 | ±53 | 9288-9394 | |
| 400 | 12974 | ±59 | 12915-13033 | |
| 500 | 16748 | ±76 | 16672-16824 | |
| 600 | 20613 | ±94 | 20519-20707 | |
| 700 | 24527 | ±110 | 24417-24637 | |
| 800 | 28455 | ±126 | 28329-28581 | |
| 900 | 32371 | ±140 | 32231-32511 | |
| 1000 | 36256 | ±154 | 36102-36410 | |
| 1100 | 40087 | ±167 | 39920-40254 | |
| 1200 | 43846 | - | - | |
| 1300 | 47477 | - | - | |
| Product | Operating temperatures/°C | Nominal value of thermoelectric EMF | Level I | |
| Tolerance | Range of EMF | |||
| EP/EN | 100 | 6 319 | ±68 | 6 251-6 387 |
| 200 | 13 421 | ±74 | 13 347-13 495 | |
| 300 | 21 036 | ±93 | 20 943-21 129 | |
| 400 | 28 946 | ±128 | 28 818-29 074 | |
| 500 | 37 005 | ±162 | 36 843-37 167 | |
| 600 | 45 093 | ±194 | 44 899-45 287 | |
| 700 | 53 112 | ±223 | 52 889-53 335 | |
| 800 | 61 017 | ±251 | 60 766-61 268 | |
| 900 | 66 787 | - | - | |
| Product | Operating temperatures/°C | Nominal value of thermoelectric EMF | Level I | |
| Tolerance | Range of EMF | |||
| JP/JN | 100 | 5 269 | ±82 | 5 187-5 351 |
| 200 | 10 779 | ±83 | 10 696-10 862 | |
| 300 | 16 327 | ±83 | 16 244-16 410 | |
| 400 | 21 848 | ±88 | 21 760-21 936 | |
| 500 | 27 393 | ±112 | 27 281-27 505 | |
| 600 | 33 102 | ±140 | 32 962-33 242 | |
| 700 | 39 132 | ±174 | 38 958-39 306 | |
| 750 | 42 281 | ±192 | 42 089-42 437 | |
| 760 | 42 919 | ±194 | 42 725-43 113 | |
| Product | Operating temperatures/°C | Nominal value of thermoelectric EMF | Level I | |
| Tolerance | Range of EMF | |||
| TP/TN | 100 | 4 279 | ±24 | 4 255-4 303 |
| 150 | 6 704 | ±30 | 6 674-6 734 | |
| 200 | 9 288 | ±43 | 9 245-9 331 | |
| 250 | 12 013 | ±56 | 11 957-12 069 | |
| 300 | 14 862 | ±70 | 14 792-14 932 | |
| 350 | 17 818 | ±74 | 17 744-17 892 | |
Our production as per norm GB/T 2614-2010,ASTME230,IEC6584.For further information or special request, please contact us.
Q1.What is the nature of the company?
A: We are a production enterprise, our company has its own factory.
Q2. What is the MOQ of an order of your company?
A: Our company's MOQ is 100 kg for each type of product.
Q3.Can I get a sample before mass production ?
A: Sample is free,the shipping cost of the sample is paid by the customer .
Q4.How long is the mass production cycle of product?
We will end the production within 15-20 days after receiving the deposit.
Q5.What payment method does your company support?
A: We can accept T/T, L/C ,you can choose the one which the most convenient or most effective for you .
A: We are a production enterprise, our company has its own factory.
Q2. What is the MOQ of an order of your company?
A: Our company's MOQ is 100 kg for each type of product.
Q3.Can I get a sample before mass production ?
A: Sample is free,the shipping cost of the sample is paid by the customer .
Q4.How long is the mass production cycle of product?
We will end the production within 15-20 days after receiving the deposit.
Q5.What payment method does your company support?
A: We can accept T/T, L/C ,you can choose the one which the most convenient or most effective for you .