Fe/CuNi Type J Thermocouple Alloy Bare Wire
Product Description
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.
Product Parameters
1.Chemical composition and mechanical properties
| Product |
Chemical Composition/% |
Density (g/cm3) |
Melting point
(ºC) |
Resistivity
(μΩ.cm) |
Tensile Strength
(Mpa) |
| Fe |
Cu |
Ni |
| JP(+) Pure Iron |
100 |
- |
- |
7.8 |
1402 |
12 |
≥240 |
JN(-)
Copper Nickel |
- |
55 |
45 |
8.8 |
1220 |
49 |
≥390 |
2.Maximum operating temperatures
Alloy wire
Dia/mm |
The long-term operating
temperatures/°C |
The short-term operating
temperatures/°C |
| 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 |
3.Couple JP/JN EMF reference table (μV)
Operating
temperatures/°C |
Nominal value of
thermoelectric EMF |
Level I |
| Tolerance |
Range of EMF |
| 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 |
Our production as per norm GB/T 2614-2010,ASTME230,IEC6584.For further information or special request, please contact us.
Detailed Photos


Company Profile
Shandong liqun alloy material co.,LTD was established in 1996, located in dezhou development zone of shandong province.with a total investment of RMB 50 milion,covering an area of 23,272 square meters,with a registered capital of 10 milion yuan and 60 employees,including 5 engineers and over 30 professional staff.Our company is dedicated to the development and production of functional instrument materials and precision electrothermal resistance alloy materials,and is the vice President unit of the materials branch of China instrument and instrument industry association,which is the national standard drafting unit,The main products include thermo-electric coupling (K,N,E, J,T), compensation wire alloy wire (KX,NX,EX,JX,TX,KNCB,KNCA,SNC,WC3/25,WC5/26),electric resistance alloy wire,monel wire,pure nickel wire,N6 nickel plate,monel kang copper plate,etc.It is widely used in the fields of aerospace,nuclear power,petroleum,chemical, steel,defense research,information industry,machinery,power,etc., providing high-precision thermoelectric and thermoelectric compensaion wires and wires for measuring temperature meters,compensation cables,nuclear power cables,miltary machinery and other industries.
The company has high efficiency and advanced production equipment,including vacuum smelting,forging,hot roling,drawing, heat treatment and various analytical detection and measurement equipment,powerful r&d team,professional engineering technicians.With years of praduction experience,scientific enterprise management,advanced unique production techniques,a rigorous quality management system,always keep the product home in the lead.Chairman Mr zhang as functional materials standardization technology committee of China,adhering to the excelsior quality requirements,products strictly enforce the lEC and ASTM international standards,research and development of K type thermocouple nickel chrome nickel alloy wire,with high accuracy and high stability,the product at 100ºC to 1000ºC achieves level standard,to provide supporting services to China nuclear power with coupling material,products are exported to the United States,South Korea,Russia,Britain,Canada,Brazil, Taiwan and other countries and regions.The company always insists on the development of quality,price and reputation,and keeps developing new products with advanced technology,advancing with The Times,scientific development,with abundant professional technology and high quality products,serving customers at home and abroad.
Welcome to visit our company.We look forward to cooperating with you sincerely.



Packaging & Shipping



FAQ
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 .