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Shielded Metal Arc Welding electrodes Forunalloyed steelUNALLOYEDSTEELShielded Metal Arc Welding electrodesfor unalloyed steelRutile and basic coated electrodes that are used for welding unalloyed steel.Rutile electrodesRutile electrodes are the most generally used consumables. Typically for weldingGd 250 and Gd 300. Characterised by excellent weldability, soft arc and excellentslag detachability. The weld surface is sound and smooth.Basic electrodesIt is common practice to weld Gd 350 base material with basic electrodes.Sometimes basic electrodes are also used for root run welding in Gd 250 and Gd300, because basic electrodes enable bridging of large variations in root gaps.Basic electrodes have a harsher arc compared to rutile electrodes. The weld beadshave a less smooth appearance. Basic electrodes are generally used to meet highrequirements on impact properties.High recovery electrodesHigh recovery electrodes are electrodes containing with high amounts of ironpowder in the coating. There are rutile types as well as basic types of high recoveryelectrodes.These types of electrodes give a higher weld metal deposit rate perelectrode. High recovery electrodes are mainly used for fillet welding (2F position)and filling of joints in the downhand position. These electrodes can be used withdrag or contact welding techniques. The weld appearance is very smooth.Shielded Metal Arc Welding electrodesUNALLOYED STEELwww.lincolnelectric.com.au5