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

Brand Name:DLX
Model Number:J type thermocouple wire
Minimum Order Quantity:5
Delivery Time:5-21 days
Payment Terms:L/C, T/T, Western Union, MoneyGram
Place of Origin:China
Contact Now

Add to Cart

Verified Supplier
Location: Changzhou Jiangsu China
Address: NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu
Supplier`s last login times: within 1 hours
Product Details Company Profile
Product Details



  • 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
CodeWires component of the thermocouple
+Positive leg-Negative leg
NNi-cr-si (NP)Ni-si-magnesium (NN)
KNi-Cr (KP)Ni-Al(Si) (KN)
ENi-Cr (EP)Cu-Ni<constantan> (EN)
JIron (JP)Cu-Ni<constantan> (JN)
TCopper (TP)Cu-Ni<constantan> (TN)
BPlatinum Rhodium-30%Platinum Rhodium-6%
RPlatinum Rhodium-13%Platinum
SPlatinum Rhodium-10%Platinum


  • ​Standards
ASTMANSIIECDINBSNFJISGOST
(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/mmLong time WorkingShort period Working
temperature/°Ctemperature/°C
0.3,0.5300400
0.8,1.0,1.2400500
1.6,2.0500600
2.5,3.2600750


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

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

Inquiry Cart 0