Silver Filled Wire - 26 Gauge Dead Soft Round - 0.5oz (39ft) by Beadsmith Silver-Filled Wire is 6% fine silver bonded to a brass core. Dead Soft Temper. Round Wire. Size: 26 gauge (0.016in, 0.4mm. 0.5oz spool, about 39.2 feet. Silver-Filled wire has the same charateristics as sterling silver. Wrap it - Link it - Solder it - Embellish with it