Physical Properties Melting range 1223 K to 1323 K (950 C to 1050 C) Coefficient of thermal expansion 1.78 x 10 -5 Thermal conductivity 48 W/m K at 293 K Electrical resistivity (annealed) 1.15 x 10 -7 W -m at 293 K Specific heat 376.4 J/ kg K Stress relief temperature (1 hour) 423 K to 498 K (150 C to 225 C) Chemical composition 94.8% copper, 5% tin, 0.2% phosphorus Insulation Polyvinyl Formal (Formvar&#153;) Magnet wire is insulated with vinyl acetal resin, as a smooth uniform film.
(W; m; K; L:at 293 K Electrical resistivity; T:Thermal conductivity 48) (293 K Electrical resistivity; annealed; ) (Magnet wire; is insulated; with vinyl acetal resin)
W 293 K Electrical resistivity Magnet wire
m annealed is insulated
K L:at 293 K Electrical resistivity T:Thermal conductivity 48
with vinyl acetal resin