China Nicr20alsi Wire/Karma /6J22Wire for Resistors Manufacture and Factory

Nicr20alsi Wire/Karma /6J22Wire for Resistors

Short Description:

NiCr20AlSi wire/Karma/6J22 wire for Resistors

Karma alloy is made up of copper, nickel, Aluminum and Iron as the main components. The resistivity is 2~3 times higher than Manganin. It has lower temperature coefficient of resistance(TCR), lower thermal EMF versus copper, good permanence of resistance for a long period of time and strong anti-oxidation. Its working temperature range is wider than Manganin (-60~300ºC). It is suitable for making fine precision resistance elements and strain foil.

Certificate: ISO 9001

Size: Customized

product name : Nicr20alsi Wire/Karma /6J22Wire for Resistors

max working temperature : 300

resistivity : 1.33

density : 8.1

thermal conductivity: 46

melting point : 1400

hardness : 180

tensile strength: 780

Fast life : >81/1200

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NiCr20AlSi wire/Karma/6j22 wire for Resistors

Karma alloy is made up of copper, nickel, Aluminum and Iron as the main components. The resistivity is 2~3 times higher than Manganin. It has lower temperature coefficient of resistance(TCR), lower thermal EMF versus copper, good permanence of resistance for a long period of time and strong anti-oxidation. Its working temperature range is wider than Manganin (-60~300ºC). It is suitable for making fine precision resistance elements and strain foil.

Chemical Content(%)

Grade	C	Si	Mn	P	S	Ni	Al	Fe	Cr
Karma	≤0.04	≤0.20	0.5~1.05	≤0.010	≤0.010	Bal.	2.7~3.2	2.0~3.0	19.0~21.5

Physical Properties

Grade	Density(g/cm3)	EMF vs Pt(0-100ºC)μv/ºC	Max using Temp (ºC)	Volume resistivity(μΩ.m)	PPM value (×10-6/ºC)
Karma	8.1	≤2.5	≤300	1.33±8%(20ºC)	≤±30(20ºC)