TEMCo Titanium Wire 20 Gauge 25 FT Surgical Grade 1 Resistance AWG ga 20 AWG, Average wire diameter: 0.032 in. (0.8128 mm) Commercially Pure Titanium, Surgical Grade 1. Rated for temperatures up to 1670C (3038F). 100% MADE IN THE U.S.A. All TEMCo wire is produced and spooled right here in the U.S.A. PERFECTLY TENSIONED. Zero elongation, scratches or other flaws ensure quality wire on every spool. ZERO CONTAMINANTS. Clean production environment houses the spooling process. Hands-off computerized spooling eliminates skin salts and oils.