RIDGID E312-16 come in a 1/2 lbs. (0.23 Kg) pack of 1/8 in. (3.2 mm) stick electrodes. This is the best electrode for welding most grades of steel with most stick electrode power sources. Weld construction and pre-hardened tool steels and specialized iron-based castings with high-carbon content. This electrode has tensile strength of 116,000 PSI and has a recommended amperage of 60-110. The electrodes are direct current electrode positive (DCEP), direct current electrode negative (DCEN), and alternating current (AC).