China High Quality Low Voltage Nickel Chrome Alloy Wire Cr20Ni80 for furnace heating Manufacture and Factory

High Quality Low Voltage Nickel Chrome Alloy Wire Cr20Ni80 for furnace heating

Short Description:

Send email to us

Product Detail

Product Tags

Product Description

High Quality Low Voltage Nickel Chrome Alloy Wire Cr20Ni80 for furnace heating
Chrome Nickel Wire Resistance is a type of high resistance electrical wire. The wire resists the flow of electricity, and converts the electrical energy into heat.

Nichrome, a non-magnetic alloy of nickel and chromium, is commonly used to make resistance wire because it has a high resistivity and resistance to oxidation at high temperatures. When used as a heating element, resistance wire is usually wound into coils.

The high nickel content, in combination with the high chromium content let the scaling temperature can reach to 1250ºC

Chrome Nickel wire was shaped by means of high speed automatic cooling machine of which the power capacity is controlled by computer, they are available as wire and ribbon(strip).

chrome nickel wire resistance Product forms and size range

Nichrome Alloy Grade

Cr20Ni80,Cr20Ni30,Cr15Ni60,Cr20Ni35,Cr20Ni40

Form

Round wire,Flat wire,Strip,Bar,Spring shaped wire, Wave shaped strip,Radiant tube heater

Size

Wire: 0.030mm-10mm

Ribbon: 0.05*0.2mm-2.0*6.0mm
Strip: 0.5*5.0mm-5.0*250mm

furnance spring wire according to customers requirement

chrome nickel wire resistance Features and advantages

1)The highest working temperature up to 1200 degree.

2)higher strength than iron chromium aluminum under high temperature

3)not easy to deform under high temperature

4)good plasticity

5)easy to repair,

6)high emissivity,

7)Non-magnetic

8)strong corrosion resistance,

9)long service life

chrome nickel wire resistance Application

Chrome nickel wire resistance is widely used for making electric heating elements in home appliances and industrial furnaces.,various electrical resistors and locomotive braking resistor, infrared equipment, liquefied gas infrared heat-resisting net, different kinds of igniting and radiating electrodes and voltage-regulating resistors for motors and so on in Metallurgical machinery

chrome nickel wire resistance Main characteristics

Type		Cr20Ni80	Cr15Ni60	Cr30Ni70	Cr20Ni35	Cr20Ni30
		Cr20Ni80	Cr15Ni60	Cr30Ni70	Cr20Ni35	Cr20Ni30
Main chemical composition	Ni	Rest	55.0~61.0	Rest	34.0~37.0	30.0~34.0
	Cr	20.0~23.0	15.0~18.0	28.0~31.0	18.0~21.0	18.0~21.0
	Fe	≤1	Rest	≤1	Rest	Rest
Maximal Temperature(ºC)		1200	1150	1250	1100	1100
Resistance Temperature correction coefficient.(CT)		1.09±0.05	1.11±0.05	1.18±0.05	1.04±0.05	1.06±0.05
Melting point (ºC)		1400	1390	1380	1390	1390
Resistivityρ20ºC(10-6Ω.m)	800ºC	1.008	1.078	1.028	1.188	1.173
	1000ºC	1.014	1.095	1.033	1.219	1.201
	1200ºC	1.025		1.043
Fast life value	Tem.(ºC)	1175	1100	1200	1050	1050
Fast life value	hour(h)	≥110	≥100	≥110	≥100	≥100
Specific gravity(g/cm3)		8.40	8.2	8.1	7.90	7.90
Elongation(%)		≥25	≥25	≥20	≥20	≥20
Thermal(kj/m.h.ºC)		60.3	45.2	45.2	43.8	43.8
Specific heat(20ºC)j/g.ºC		0.440	0.494	0.461	0.500	0.500
Extend strength(20~1000ºC)α*10-6ºC		18.0	17.0	17.1	19.0	19.0
Tensile strength(kg/mm2)		>85	>85	>85	>85	>85
Repeatedly bending(F/R)		>12	>12	>12	>12	>12
Microstructure		Austenitic	Austenitic	Austenitic	Austenitic	Austenitic

chrome nickel wire resistance Notice

Resistance electric heating wire has strong antioxidant properties, but a variety of gases in furnaces such as air, carbon, sulfur, hydrogen and nitrogen atmosphere, still have a certain impact on it.

Although these heating wires all have had antioxidant treatment, the transportation, winding, installation and other process will cause damage to a certain extent and reduce its service life.

In order to extend the service life, customers need to do pre oxidation treatment before using. The method is to heat alloy elements which have installed completely in the dry air to the temperature (lower 100-200C than its maximum using temperature), heat preservation for 5 to 10 hours, then cooling slowly with furnace.

Pictures of chrome nickel wire resistance

Packaging & Shipping

Package of chrome nickel wire resistance: Goods are supply in coil or on spool, Carton or wooden case in outside as demanded. Shipping of chrome nickel wire resistance: By vessel or by train from any Chinese port, Samples can be delivered by International express.

High Quality Low Voltage Nickel Chrome Alloy Wire Cr20Ni80 for furnace heating