19 Carbon Steel Submerged Arc Wires Spoolarc 80 AWS Class EL12 Description: n Low manganese and silicon wire - minimal rust and mill scale tolerance. n Excellent ductility and crack resistance - recommended for restrained welds and good machinability. n Suitable for butt or fillet welds on lower strength carbon steels. n Applications include high speed lap welds, build-up or repair welding prior to machining and buttering or cladding operations. n Usable with Unionmelt 80, 350, 350M and 231 fluxes. n Wire diameters:  1/16" (1.6 mm), 5/64" (2.0 mm), 3/32" (2.4 mm), 1/8" (3.2 mm), 5/32" (4.0 mm) & 3/16" (4.8 mm). Spoolarc 29S AWS Class EM13K Description: n Moderate amount of manganese and silicon (higher than Spoolarc 80) for rust and mill scale tolerance. n Ideally suited for high speed single pass welding on light gauge steels. n Higher silicon level reduces porosity and pock marking. Good wetting action and even weld bead profile. n Some caution should be taken when used with an active flux. n Applications include structural supports, spiral pipe, hot water tanks, and pressure vessel construction. n Usable with Unionmelt 231, 651VF, 429, 439, 429M, and 656 fluxes. n Wire diameters:  1/16" (1.6 mm), 5/64" (2.0 mm), 3/32" (2.4 mm), 1/8" (3.2 mm), 5/32" (4.0 mm) & 3/16" (4.8 mm). Recommended Welding Parameters page 33 Continued on next page...
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