LASTEK 90 HIGH STRENGTH - SOFT ARC WELDING ELECTRODES 2.5MM X 1KG

LASTEK 90 HIGH STRENGTH - SOFT ARC Exceptional mechanical characteristics. Recommended for all steels that are difficult to weld. Highly alloyed with Ni, Cr and Mn. The deposited material is very tough, crack-free, and has an exceptional resistance to shocks and fatigue. Good resistance to wear, corrosion and heat. Very soft arc, with minimum spatter and no undercut. APPLICATION Wear plates for waste disposal, teeth of dredger buckets. Repair of cracked buckets and scoops. Repair of tractor-platforms, rear axle and fellies of trucks, leaf springs, broken crank shafts. Base layer for surfacings on problem steels. Repair of broken cutting tools. Wear-resistant surfacing of machine parts e.g. plastic injection moulds. Hardness: 220 HB INSTRUCTIONS Use a short arc, electrode position almost 90° to the workpiece. Allow each weld bead to cool slightly before making a further deposit. For welding on crack sensitive steels, pre-heat the work piece until it reaches the tempering temperature of the steel. Avoid rapid cooling. 12-14% Manganese steel is always welded cold (max 350 ° C). SPECIFICATIONS Welding proces: Covered electrode (SMAW) Material Type: High alloyed steel Welding positions: All, except vertical down. Norm : EN ISO 3581-A Classification: E 29 9 R12 Norm: AWS A5.4 Classification: E 312-16