Solder Wire Form Flux-Cored Wire Material Composition 40 Percent Tin 60 Percent Lead Wire Diameter 0.062 in Weight 1 lb Melting Temperature (Minimum) 360 Degrees F Melting Temperature (Maximum) 460 Degrees F Flux Type Rosin Solder Series 40/60 Application Appliances Motors Speaker Wire Wiring Container Type Spool Flux Requirement Contains Flux Core Standards ASTM B-32