Fe-CuNi (constantan) Thermocouple Wire (Type J)

• Customization: Available
• Product Type: Alloy
• Material: Ni Cr Si
• Model NO.: chenxin-128
• Thermocouple Wire Type: K E J T N
• Thermocouple Wire Diameter: 0.02mm-10mm You Choose
• Thermocouple Wire Feather: Soft Wire and Hard Wire
• Thermocouple Wire Surface Treatment: Bright Annealing, Oxidizing
• Thermocouple Wire Temperature Range: Long Term and Short Term
• Thermocouple Conductorsingle Wire or Str: Single Wire or Stranded
• Thermocouple Grade: I Grade, or II Grade
• Thermocouple Wire Emf Values: Inspection Report Supplied
• Transport Package: Spool or Coil, Carton, Pallet or Wooden Case
• Specification: 0.02mm-10mm you choose
• Trademark: SENPHUS
• Origin: China. Jiangsu. Jiangying
• HS Code: 90251910
• Production Capacity: 50000kg/Mouth
• Package Size: 35.00cm * 25.00cm * 15.00cm
• Package Gross Weight: 18.000kg

Product Description

Fe-CuNi (constantan) Thermocouple Wire (Type J)

Fe-CuNi thermocouple (type J) is also named Fe-Conshtantan thermocouple .The positive  leg Fe(JP) is made by pure iron, and the main chemical composition of negative leg Constantan(JP) is Cu :Ni ≈ 55%:45%.Although they are all called Constantan, JN does not give the same EMF output curve as EN and TN,it cannot be instead by other Constantan.
 
 
 
The operating temperature range of type J thermocouple is -210~1200ºC, but it is usually used in the temperature range 0~750ºC due to embrittlement of iron.
 
 
Type J thermocouple has good resistance to oxidation and high EMF output  against Platinum 67,with good temperature accuracy, sensitivity and stability. It is commended for vacuum,oxidizing, reducing or inert atmospheres, but it can not be used in sulphurous atmosphere above 500ºC.
 

 

Name	Usag Classification	Grade	Temperature range(ºC)		Tolerance	Standard
			Long term	Short term
NiCr-NiA(Type K)thermocouple bright wire	K	I	-40~1200	-40~1300	±1.5ºCor ±0.4%	GB/T2614-1998
		II			±2.5 ºCor ±0.75%
NiCr-CuNi(Type E)thermocouple bright wire	E	I	-40~750	-40~900	±1.5 ºCor ±0.4%	GB/T4993-1998
		II			±2.5 ºCor±0.75%
Fe-CuNi(Type J)thermocouple bright wire	J	I	-40~600	-40~750	±1.5 ºCor ±0.4%	GB/T4994-1998
		II			±2.5 ºCor±0.75%
Cu-CuNi(Type T)thermocouple bright wire	T	I	-200~300	-200~350	±0.5 ºCor ±0.4%	GB/T2903-1998
		II			±1 ºCor ±0.75%
		III			±1 ºCor ±1.5%
NiSiMg(Type N)thermocouple bright wire	N	I	-40~1200	-40~1300	±1.5 ºCor ±0.4%	GB/T17615-1998
		II			±2.5 ºCor±0.75%