NiChrome Wires

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NiChrome Wires
Posting date : Mar 02, 2010
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75-
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NiChrome Wire(Nickel-Chromium Alloy Wire) Electrical Resistance Heating alloy wires Electrothermal Alloy wires or strips NiCr,NiCrFe Alloys possess high electric resistance, corrosion resistance, high strength under temperature, good formability and weldability. It can be used for making heating element and resistor in metallurgical industry, household electrical appliance and machine building industry. 1.FeCrAl wires 0Cr25Al5,0Cr23Al5,0Cr21Al6Nb,0Cr21Al6,0Cr21Al4,0Cr19Al3,0Cr15Al5,0Cr13Al4,0Cr27Al7Mo2,etc. 2.Nichrome wires or strips Cr20Ni80,Cr30Ni70,Cr20Ni35,Cr20Ni30,Cr15Ni60,etc. 3.CuNi wires or strips CuNi44-1,Monel wire, Dumet wire, etc 4.Stainless Steel Wires or Strips NiCr, NiCrFe Alloys TYPE Property Cr15Ni60 Cr20Ni80 Cr20Ni30 Cr30Ni70 Cr20Ni35 Main Chemica l Composition(%) Cr 15-18 20-23 18-21 28-31 18-21 Ni 55-61 Rest 30-34 -- 34-37 Fe Rest -- Rest ≤1.0 -- Max continuous service Temp.of elements 1100 1150 1100 1250 1100 Density(g/cm3) 8.2 8.4 7.9 8.1 7.9 Melting point(approx ) 1390 1400 1390 1380 1390 Elongating(%) 20 20 30 20 20 Resistivity at 20 1.12-1.15±0.05 1.09-1.14±0.05 1.04-1.06±0.05 1.18±0.05 1.04±0.05 Micrographic structure Austenite A Austenite A Austenite A Austenite A Austenite A Than hot J/g 0.494 0.440 0.500 0.461 0.500 Heat conduction coefficient KJ/m.h 45.2 60.3 43.8 45.2 43.8 Linear expansion coefficient a x 10-6/201000 17.0 18.0 19.0 17.0 19.0 magnetic Non-magnetic Non-magnetic Non-magnetic Non-magnetic Non-magnetic

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