Electric Heating Alloy Resistance Wire Coil

Electric heating alloy resistance wire coil DescriptionFeCrAl alloy wires are made of iron chromium aluminum base alloys containing small amounts of reactive elements such as yttrium and zirconium and produced by smelting, steel rolling, forging, annealing, drawing, surface treatment, resistance control test, etc.  The high aluminum content, in combination with the high chromium content let the scaling temperature can reach to 1425ºC (2600ºF); Fe-Cr-Al 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). Product forms and size range  Round wire 0.010-12 mm (0.00039-0.472 inch) other sizes are available on request. Ribbon (flat wire) Thickness: 0.023-0.8 mm (0.0009-0.031 inch) Width: 0.038-4 mm (0.0015-0.157 inch) Width/thickness ratio max 60, depending on alloy and tolerance Other sizes are available on request. 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.  Features and advantages1. High using temperature, the maximum using temperature can reach 1400C (0Cr21A16Nb, 0Cr27A17Mo2, etc.)2. Low temperature coefficient of resistance3. Lower thermal expansion coefficient than the Ni-base super-alloys.4. High electrical resistivity5. Good corrosion resistance under high temperature, especially under the atmosphere containing sulfides 6. High surface load7. Creep-resistant 8. Lower raw-material cost, Lower density and cheaper price compared with Nichrome wire.9. Superior oxidation resistance at 800-1300ºC10. Long service life Application Our products (FeCrAl) high resistance electric heating wire materials are salable and widely used for making heating equipment like industrial furnace, civil heating appliance, 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, medical, chemical, ceramics, electronics, electrical appliances, glass and other civil or industrial fields.Main characteristics of Fe-Cr-Al- high resistances electric heating alloysBrand name1Cr13Al40Cr25Al50Cr21Al60Cr23Al50Cr21Al40Cr21Al6Nb0Cr27Al7Mo2Main chemical composition%Cr12.0-15.023.0-26.019.0-22.022.5-24.518.0-21.021.0-23.026.5-27.8Al4.0-6.04.5-6.55.0-7.04.2-5.03.0-4.25.0-7.06.0-7.0REopportuneamountopportuneamountopportuneamountopportuneamountopportuneamountopportuneamountopportuneamountFeRestRestRestRestRestRestRest      Nb0.5Mo1.8-2.2Max.continuousservice temp.ofelement (ºC)950125012501250110013501400ResistivityμΩ.m,20ºC1.251.421.421.351.231.451.53Density(g/cm3 )7.47.107.167.257.357.107.10ThermalconductivityKJ/m.h.ºC52.746.163.260.246.946.145.2Coefficient oflines expansionα×10-6/ºC15.416.014.715.013.516.016.0Melting pointºC1450150015001500150015101520Tensile strengthMpa580-680630-780630-780630-780600-700650-800680-830Elongation atrupture %>16>12>12>12>12>12>10Variation ofarea %65-7560-7565-7565-7565-7565-7565-75Repeat bendingfrequency(F/R)>5>5>5>5>5>5>5Hardness(H.B.)200-260200-260200-260200-260200-260200-260200-260MicrographicstructureFerriteFerriteFerriteFerriteFerriteFerriteFerriteMagneticpropertiesMagneticMagneticMagneticMagneticMagneticMagneticMagnetic    Package: Goods are supply in coil or on spool, Carton or wooden case in outside as demanded.  Shipping: By vessel or by train from any Chinese port, Samples can be delivered by International express. Package of electric resistance heating wireOur Service: 1. Timely response, Timely response to your inquiry, multiple choice recommendations based on your demand, quickly respond mails and provide solutions. 2. Sample evaluationSample and trial order is accepted for the quality evaluation. 3. Strict quality controlArrange production on time and control quality strictly. 4. Shorter delivery time.Book the earliest vessel or plane to guarantee the delivery time. 5. Professional ServicesProvide all the detailed news and pictures from order to delivery;Offer relative export documents and original certificate if needed;Warm and considerable after-sale service Company Information DKJL refractories exporting company is one of the most professional suppliers of refractories in Beijjing, China. Our main products are refractory and