Handbook - Metal Removal Electrodes

All-State Stud Plus^® Flux Coated Electrode for Removal of Broken Studs, Snapped Drills or Taps AC or DC Reverse Polarity (Electrode + ) General Characteristics Works on all steel fasteners — Grade 5, Grade 8, even case hardened. Special flux solidifies to protect threads during the build-up operation. Yield strength 120,000 psi (84.39 kg/mm²) Procedures 1. Choose correct size of electrode to suit cavity diameter. Set amperage according to chart. Cavity Diameter Size, Electrode Size, Recommended Amperages Up to 3/8" (9.5 mm) cavity diameter use 3/32" (2.4 mm) at 50-75 amps. From 3/8" to 1/2" (9.5 ram-13 mm) cavity diameter use 1/8" (3.2 mm) at 80-120 amps. For cavity diameters over 1/2" (13 mm) use 5/32" (4.0 mm) at 100-140 amps.