Fe/CuNi Type J Wire Products Thermocouple Alloy Bare Wire

Price Negotiable

Price: Negotiable

MOQ: 5kg

Delivery Time: 5-21 days

Brand: Huona

Product Description

Fe/CuNi Type J Wire Products Thermocouple Alloy Bare Wire

Product Name Type J Thermocouple Wire
Positive Pole Pure Iron
Negative Pole Copper Nickel
Specification 3.2/2.5/2.0/1.29/0.813/0.5/0.3/0.2mm
Range of Application Heating, Temperature Measurement
Material Shape Round Wire
Tensile Strength (Mpa) ≥390(JN)

Fe/CuNi Type J Thermocouple Alloy Bare Wire

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.

1. Chemical composition and mechanical properties

Product	Chemical Composition/%	Density (g/cm3)	Melting point (ºC)	Resistivity (μΩ.cm)	Tensile Strength (Mpa)
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
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)