N8/Ni80/Alloy a High Resistance Foil Nicr 80/20 Foil for Heap Resistor

Product Description

N8/Alloy A High Resistance Foil Nicr 80/20 Foil for Heap resistor

Ni80Cr20 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance and very good form stability. It is suitable for use at temperatures up to 1200°C,and hold a superior service life compared to Iron chromium alumium alloys.
Typical applications for Ni80Cr20 are electric heating elements in home appliances,industrial furnaces and resistors(wirewound resistors,metal film resistors), flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.

Normal composition%

C	P	S	Mn	Si	Cr	Ni	Al	Fe	Other
Max
0.03	0.02	0.015	0.60	0.75~1.60	20.0~23.0	Bal.	Max 0.50	Max 1.0	-

 

Typical Mechanical properties(1.0mm)

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
420	810	30

 

Typical Physical properties

Density (g/cm3)	8.4
Electrical resistivity at 20ºC(mm2/m)	1.09
Conductivity coefficient at 20ºC (WmK)	15

 

Coefficient of thermal expansion
Temperature	Coefficient of Thermal Expansion x10-6/ºC
20 ºC- 1000ºC	18

 
 

Specific heat capacity
Temperature	20ºC
J/gK	0.46

 

Melting point (ºC)	1400
Max continuous operating temperature in air (ºC)	1200
Magnetic properties	non-magnetic

 

Temperature Factors Of Electrical Resistivity
20ºC	100ºC	200ºC	300ºC	400ºC	600ºC
1	1.006	1.012	1.018	1.025	1.018
700ºC	800ºC	900ºC	1000ºC	1100ºC	1300ºC
1.01	1.008	1.01	1.014	1.021	-

 
Style of supply

Alloys Name	Type	Dimension
Ni80Cr20W	Wire	D=0.03mm~8mm
Ni80Cr20R	Ribbon	W=0.4~40	T=0.03~2.9mm
Ni80Cr20S	Strip	W=8~250mm	T=0.1~3.0
Ni80Cr20F	Foil	W=6~120mm	T=0.003~0.1
Ni80Cr20B	Bar	Dia=8~100mm	L=50~1000