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J Type Thermocouple Wire The Positive Is Iron The Negative Is Constantan

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Province/State:jiangsu
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J Type Thermocouple Wire The Positive Is Iron The Negative Is Constantan

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Brand Name :DLX
Model Number :J type thermocouple wire
Place of Origin :China
MOQ :5
Payment Terms :L/C, T/T, Western Union, MoneyGram
Supply Ability :300 tons per month
Delivery Time :5-21 days
Packaging Details :Spool package with Carton box, Coil package with polybag for J type thermocouple wire
Product name :Thermocouple Bare Wire
Color :bright
Certificate :ISO9001
Temperature range :-346 to 1,400F (-210 to 760C)
EMF tolerance :+/- 2.2C or +/- .75%
Grade :IEC854-1/3
Positive :Iron
Negative :Cu-Ni
Special Limits of Error :+/- 1.1C or 0.4%
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J Type Thermocouple Wire The Positive Is Iron The Negative Is Constantan


J Type Thermocouple Wire The Positive Is Iron The Negative Is Constantan


  • J type thermocouple wire the positive is iron the negative is constantan

J type thermocouple wire is the latest base metal thermocouple, developed to improve the drawbacks that type K thermocouple has. The main chemical composition of positive leg Nicrosil(NP) is Ni: Cr: Si≈84.4: 14.2: 1.4; negative leg Nisil (NN) is Ni: Si: Mg≈95.5: 4.4: 0.1. Type N thermocouple also be used in the similar atmospheres that type K works, and the operating temperature range is -200~1300℃.

J type thermocouple wire improves the EMF drift and short term EMF change, compared to type K thermocouple, and has a longer life than type K thermocouple. Therefore, in the industries where temperature control and measurement are especially critical, type N thermocouple has more advantages than other thermocouple as it has long life and stable thermal EMF.

High quality with high measuring accuracy, fast thermal response, high mechanical strength, long service lifetime, wide temp measuring range of -200-1300 centigrade .


  • Thermocouple Wire
Code Wires component of the thermocouple
+Positive leg -Negative leg
N Ni-cr-si (NP) Ni-si-magnesium (NN)
K Ni-Cr (KP) Ni-Al(Si) (KN)
E Ni-Cr (EP) Cu-Ni<constantan> (EN)
J Iron (JP) Cu-Ni<constantan> (JN)
T Copper (TP) Cu-Ni<constantan> (TN)
B Platinum Rhodium-30% Platinum Rhodium-6%
R Platinum Rhodium-13% Platinum
S Platinum Rhodium-10% Platinum

  • ​Standards
ASTM ANSI IEC DIN BS NF JIS GOST
(American Society for Testing and Materials) E 230 (American National Standard Institute) MC 96.1 (European Standard by the International Electrotechnical Commission 584)-1/2/3 (Deutsche Industrie Normen) EN 60584 -1/2 (British Standards) 4937.1041, EN 60584 - 1/2 (Norme Française) EN 60584 -1/2 - NFC 42323 - NFC 42324 (Japanese Industrial Standards) C 1602 - C 1610 (Unification of the Russian Specifications) 3044


  • Size range

Wire: 0.1 to 8.0 mm.

  • Working temperature:

Diameter/mm Long time Working Short period Working
temperature/°C temperature/°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

J Type Thermocouple Wire The Positive Is Iron The Negative Is ConstantanJ Type Thermocouple Wire The Positive Is Iron The Negative Is ConstantanJ Type Thermocouple Wire The Positive Is Iron The Negative Is ConstantanJ Type Thermocouple Wire The Positive Is Iron The Negative Is Constantan

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