Constantan CuNi44 Wire resistance wire for electric elements

• Product Type: Wire
• Material: Copper and Nickel
• Carbon Content: No
• Resistivity: 0.49+-5%
• Density: 8.9(g/cm3)
• Elongation: >25%
• Model NO.: CuNi44
• Melting Point: 1280
• State: Annealed and Hard
• Surface: Bright
• Other Name: Nc050
• Transport Package: Spool/Coil, Carton, Wooden Case
• Specification: RoHS, ISO 9001
• Trademark: Tankii
• Origin: China
• HS Code: 7505220000
• Production Capacity: 500 Tons/Year

Product Description

Constantan CuNi44 Wire resistance wire for electric elements

 
Constantan Wire Definition
Resistance alloy with moderate resistivity and low temperature coefficent of resistance with a flat resistance/temperature curve over a wider range than the "manganins". Constantan also shows better corrosion resistance than the man ganins. Uses tend to be restricted to ac circuits. Constantan is also the negative element of the type J thermocouple with Iron being the positive; type J thermocouples are used in heat treating applications. Also, it is the negative element of the type T thermocouple with OFHC Copper the positive; type T thermocouples are used at cryogenic temperatures.

 Chemical Content, %

Ni	Mn	Fe	Si	Cu	Other	ROHS Directive
						Cd	Pb	Hg	Cr
44	1.50%	0.5	-	Bal	-	ND	ND	ND	ND