China Cr20ni80 NiCr8020 Nicr Alloy Nichrome Wire for Heating Element Manufacture and Factory

Cr20ni80 NiCr8020 Nicr Alloy Nichrome Wire for Heating Element

Short Description:

The material NiCr8020 with the material number 2.4869 is applied in the form of strips, sheets, tubes and wires for furnace construction components and heating conductors. It is a nickel-chromium heating conductor alloy for operating temperatures of up to 1150 °C and often contains additives of rare earths for a higher resistance to oxidation, especially with frequent switching operations or broad temperature variations. The resistance to atmospheric corrosion at 20 °C is high up to the upper operating temperature the resistance to air and other oxygen-containing gases as well as to nitrogen-containing low-oxygen gases is high as well, yet it is low to oxidizing as well as reducing gases containing sulphur. The resistance to carbonizing is high. Application for industrial electric furnaces, enamelling furnaces, household appliances, night-current storage space-heaters.

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Cr20ni80 NiCr8020 Nicr Alloy Nichrome Wire for Heating Element

Description

Chemical Composition and Propertes:
Propertes/Grade		NiCr 80/20	NiCr 70/30	NiCr 60/15
Main Chemical Composition(%)	Ni	Bal.	Bal.	55.0-61.0
	Cr	20.0-23.0	28.0-31.0	15.0-18.0
	Fe	≤ 1.0	≤ 1.0	Bal.
Max Working Temperature(ºC)		1200	1250	1150
Resistivity at 20ºC(μ Ω · m)		1.09	1.18	1.12
Density(g/cm3)		8.4	8.1	8.2
Thermal Conductivity(KJ/m· h· ºC)		60.3	45.2	45.2
Coefficient of Thermal Expansion(α × 10-6/ºC)		18	17	17
Melting Point(ºC)		1400	1380	1390
Elongation(%)		> 20	> 20	> 20
Micrographic Structure		austenite	austenite	austenite
Magnetic Property		nonmagnetic	nonmagnetic	nonmagnetic

Propertes/Grade		NiCr 35/20	NiCr 30/20	Karma	Evanohm
Main Chemical Composition(%)	Ni	34.0-37.0	30.0-34.0	Bal	Bal
	Cr	18.0-21.0	18.0-21.0	19.0-21.5	19.0-21.5
	Fe	Bal.	Bal.	2.0-3.0	-
Max Working Temperature(ºC)		1100	1100	300	1400
Resistivity at 20ºC (μ Ω · m)		1.04	1.04	1.33	1.33
Density(g/cm3)		7.9	7.9	8.1	8.1
Thermal Conductivity (KJ/m· h· ºC)		43.8	43.8	46	46
Coefficient of Thermal Expansion(α × 10-6/ºC)		19	19	-	-
Melting Point(ºC)		1390	1390	1400	1400
Elongation(%)		> 20	> 20	10-20	10-20
Micrographic Structure		austenite	austenite	austenite	austenite
Magnetic Property		nonmagnetic	nonmagnetic	nonmagnetic	nonmagnetic

Chemical Composition	Nickel 80%, Chrome 20%
Condition	Bright/Acid white/Oxidied Color
Diameter	0.018mm~1.6mm in spool, 1.5mm-8mm packing in coil, 8~60mm in rod
Nichrome Round Wire	Diameter 0.018mm~10mm
Nichrome Ribbon	Width 5~0.5mm, thickness 0.01-2mm
Nichrome Strip	Width 450mm~1mm, thickness 0.001m~7mm
Diameter	1.5mm-8mm packing in coil, 8~60mm in rod
Grade	Ni80Cr20, Ni70/30, Ni60Cr15, Ni60Cr23, Ni35Cr20Fe, Ni30Cr20 Ni80, Ni70,Ni60, Ni40,
Advantage	The metallurgical structure of nichrome confers them a very good plasticity when cold.
Characteristics	Stable performance; Anti-oxidation; Corrosion resistance; High temperature stability; Excellent coilforming ability; Uniform and beautiful surface condition without spots.
Usage	Resistance heating elements;Material in metallurgy, Household appliances;Mechanical manufacturing and other industries.

Resistance Wires
RW30	W.Nr 1.4864	Nickel 37%, Chrome 18%, Iron 45%
RW41	UNS N07041	Nickel 50%, Chrome 19%, Cobalt 11%, Molybdenum 10%, Titanium 3%
RW45	W.Nr 2.0842	Nickel 45%, Copper 55%
RW60	W.Nr 2.4867	Nickel 60%, Chrome 16%, Iron 24%
RW60	UNS NO6004	Nickel 60%, Chrome 16%, Iron 24%
RW80	W.Nr 2.4869	Nickel 80%, Chrome 20%
RW80	UNS NO6003	Nickel 80%, Chrome 20%
RW125	W.Nr 1.4725	Iron BAL, Chrome 19%, Aluminium 3%
RW145	W.Nr 1.4767	Iron BAL, Chrome 20%, Aluminium 5%
RW155		Iron BAL, Chrome 27%, Aluminium 7%, Molybdenum 2%