High Temperature Nichrome electric heater Element Ni70cr30 Nicr Belt Strip for Braking Resistor

• Product Type: Strip
• Material: Nickel Base Alloys
• Carbon Content: Low Carbon
• PCD: -
• ET: -
• Hole: -
• Model NO.: Ni70cr30
• Main Usage: Resistor, Heater, Furnace
• Grade: NiCr 70/30
• Alloy OTR not: Alloy
• Surface: Bright
• Application: Heating element
• Other Shape: Wire/bar/pipe
• series of alloy: Ni80Cr20,Ni70Cr30,Ni60Cr23,Ni60Cr15,Ni35Cr20,Karma
• Nominal Composition: Ni:70,Cr:30
• Feature: high resistivity
• Resistivity: 1.18
• Density: 8.1 g/cm3
• Transport Package: Plastic Film, Waterproof Paper, Wooden Case
• Specification: ASTM B630, GB/T 1234
• Trademark: TANKII
• Origin: China
• HS Code: 7506200000
• Production Capacity: 3000 Tons/Year

Product Description

High Temperature Nichrome electric heater Element Ni70cr30 Nicr 70/30 Belt Strip for Braking Resistor

Nickel Chromium Alloy Introduction:
Nickel Chromium alloy has high resistivity, good anti-oxidation properties, high temperature strength, very good form stability and weld ability. It is widely used in electrical heating element material, resistor, industrial furnaces, etc.

Ni70Cr30 is an austenitic nickel-chromium alloy suitable for temperature applications up to 1250°C. High chromium content (30% in average) provides very good life time, especially in the furnace applications. Ni70Cr30 is characterized by high resistivity, good oxidation resistance, good ductility after use and excellent weldability.

Ni70Cr30 is used for electric heating elements in industrial furnaces. Typical applications are: electric and enamelling furnaces, storage heaters, furnaces and kilns with a changing atmospheres.
 

Typical Mechanical properties(1.0mm)

1.  Elongation:               30%
2.  Yield Strength:         420Mpa

We also produce other kind of nichrome resistance alloy, such as NiCr 70/30,NiCr 60/15,NiCr 60/23,NiCr 37/18, NiCr 35/20, NiCr 35/20, NiCr 25/20,Karma
           
Chemical Composition and Propertes:

Propertes/Grade		NiCr 80/20	NiCr 70/30	NiCr 60/15	NiCr 35/20	NiCr 30/20
Main Chemical  Composition(%)	Ni	Bal.	Bal.	55.0-61.0	34.0-37.0	30.0-34.0
	Cr	20.0-23.0	28.0-31.0	15.0-18.0	18.0-21.0	18.0-21.0
	Fe	≤ 1.0	≤ 1.0	Bal.	Bal.	Bal.
Max Working Temperature(ºC)		1200	1250	1150	1100	1100
Resistivity at 20ºC (μ Ω · m)		1.09	1.18	1.12	1.04	1.04
Density(g/cm3)		8.4	8.1	8.2	7.9	7.9
Thermal Conductivity (KJ/m· h· ºC)		60.3	45.2	45.2	43.8	43.8
Coefficient of Thermal Expansion(α × 10-6/ºC)		18	17	17	19	19
Melting Point(ºC)		1400	1380	1390	1390	1390
Elongation(%)		> 20	> 20	> 20	> 20	> 20
Micrographic Structure		austenite	austenite	austenite	austenite	austenite
Magnetic Property		nonmagnetic	nonmagnetic	nonmagnetic	nonmagnetic	nonmagnetic

 

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%