AWG 20 Constantan Wire for Type E/J/T Thermocouple Cable Copper&Nickel Alloy Wire

• Product Type: Wire
• Material: Copper&Nickel Alloy
• Carbon Content: Low Carbon
• PCD: No
• ET: No
• Hole: No
• Model NO.: C-HP-23
• Transport Package: 100m/Roll, 500m/Spool, 1000m/Drum
• Specification: AWG 20
• Trademark: OHMALLOY
• Origin: China
• Production Capacity: 500000 Meter/Meters Per Month

Product Description

AWG 20 Constantan wire for Type E/J/T thermocouple cable Copper&Nickel alloy wire


OhmAlloy049 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C

TYPE T (Copper vs Constantan) is used or service in oxidizing, inert or reducing atmospheres or in vacuum. It is highly resistant to corrosion from atmospheric moisture and condensation and exhibits high stability at low temperatures. It is the only type with limits of error guaranteed for cryogenic temperatures.

 

1. Chemical Composition

Material	Chemical composition (%)
	Ni	Cr	Cu	Mn	Al
TP(Copper)			100
TN(Constantan)	45		55

2. Physical properties and Mechnical properties

Material	Density(g/cm^3)	Melting point(ºC)	Tensile Strength(Mpa)	Volume resistivity(μΩ.cm)	Elongation rate (%)
TP(Chromel)	8.9	1084	>196	1.71(20ºC)	>30
TN(Constantan)	8.8	1220	>390	49.0(20ºC)	>25

 

3. EMF Value range at different temperature

Material	EMF value Vs Pt(μV)
	-196ºC	-79ºC	100ºC	150ºC	200ºC	250ºC
TP(Chromel)	-212	-332	761~785	1263~1287	1825~1849	2450~2474
TN(Constantan)	-5327	-2426	3493~3517	5412~5448	7420~7582	9507~9595

 

EMF value Vs Pt(μV)
300ºC	350ºC	400ºC	500ºC	600ºC
3137~3161	3880~3904
11655~11771	13864~13988

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