Nichrome Stranded WireIt is usually consist of 19 multi stranded nichrome wire and used in all heating elements.  1.MaterialNi80Cr20,Ni70Cr30,Ni60Cr15,Ni35Cr20,Ni30Cr20 etc with 19 strands. 2.SpecificationOur most common dimension is 0.523mm*18 0.574mm*1,0.5mm*19,0.55mm*19,the other conductor sizes are available upon your request.3.FeaturesHigh resistivity,good oxidation resistance,very good form stability,good ductility and excellent weldability,high temperature resistance. 4.UsageA heating element repair kit comes with 80/20 (19 multi-strand), in addition, Heater Core Wire is Consists of 80/20 nickel chrome alloy (19 multi-strand) on 500m/1640' roll. 5.DatabasePropertes/GradeCr20Ni80Cr30Ni70Cr15Ni60Cr20Ni35Cr20Ni30Main Chemical  Composition(%)NiRestRest55.0-61.034.0-37.030.0-34.0Cr20.0-23.028.0-31.015.0-18.018.0-21.018.0-21.0Fe≤ 1.0≤ 1.0RestRestRestMax Continuous Service Temperature(℃)12001250115011001100Resistivity at 20℃(μ Ω · m)1.091.181.121.041.04Density(g/cm3)8.48.18.27.97.9Thermal Conductivity(KJ/m· h· ℃)60.345.245.243.843.8Coefficient of Thermal Expansion(α × 10-6/℃)1817171919Melting Point(℃)14001380139013901390Elongation(%)> 20> 20> 20> 20> 20Micrographic StructureausteniteausteniteausteniteausteniteausteniteMagnetic Propertynonmagneticnonmagneticnonmagneticnonmagneticnonmagnetic