Pure Atomist PA-KA1-20G100 Kanthal A1 20 Gauge 100 ft. Resistance Wire Diameter: 0.81mm / 20 AWG Wire Shape: Round ; Temper: Annealed 0.814 Ohms/ft Resistance at Room temperature Maximum continuous operating temperature of 1400C / 2550F Heat resistant up to 1500C / 2730F (Melting Point)