Thermocouple TYpe J Extension Compansation Cable Fiberglass SS304
Sheath 24AWG
TYPE J (Iron vs Constantan) is used in vacuum, oxidizing, inert or reducing atmospheres. Iron
element oxidizes rapidly at temperatures exceeding 538'C, and
therefore heavier gauge wire is recommended for longer life at
these temperatures.
1. Product Details
1. Chemical Composition
| Material | Chemical composition (%) |
| Ni | Cu | Si | Iron | Al |
| JP(Iron) | | | | 100 | |
| JN(Constantan) | 45 | 55 | | | |
2. Physical Properties and Mechnical Properties
Material |
Density(g/cm3) |
Melting point(℃) |
Tensile Strength(Mpa) |
Volume resistivity(μΩ.cm) |
Elongation rate (%) |
| JP(Iron) | 7.8 | 1402 | >240 | 12.0(20℃) | >20 |
| JN(Constantan) | 8.8 | 1220 | >390 | 49.0(20℃) | >25 |
3. EMF Value Range at Different Temperature
| Material | EMF value (μV) |
| 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ |
| JP-JN | 5187~ 5351 | 10696~10862 | 16244~16410 | 21760~21936 | 27281~27505 | 32962~ 33242 |
| EMF value Vs Pt(μV) | |
| 700℃ | 750℃ | 760℃ | 800℃ | 900℃ | 1000℃ | |
| 38958~39306 | 42089~42473 | 42725~43113 | | | | |
3. Production Progress
2. Our Service
3. Questions and Answers
Q1:How can I contact with your company?
A1:We have multiple communication channels : Tel/ :+86-15826530281
Q2:Do you provide free samples?
A2:Yes,we can provide free samples for your testing,but buyer
should bear the shipping costs.
Q3:What is your payment terms?
A3:30% in advance,balance after receiving the copy of B/L.
T/T,L/C,,Paypal is OK.
Q4:What is your lead time?
A4:On normal condition,the lead time is 7 days after the payment.
Special order or quantity is subject to the negotiation.
Q5:What is your working time?
A5: Monday to Firday: 9:00-12:00,13:30-17:30, rest in weekend.
