Types of welding electrodes pdf

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DC electrode positive unit must be run on DC welder. 6011 Electrodes: Popular electrode for utility type welders. Works well on rusty, dirty steel.Overhead - weld that needs to be done upside down. CLASSIFICATION TABLE. Class. Electrode Coating. Penetration. Current Type. Exxx0. Cellulose, Sodium. An all purpose welding electrode for mild steel which produce a corrosion ressistant and heat resistant steels of 309 types. Applications:. The selection of a correct type of welding electrode for specific application is a very important consideration in metal arc welding. Metal welding. ESAB FERROSPEED is a rutile-coated general-purpose electrode for welding structures that Coating Type: The weld deposit is of radiographic quality. Touch type electrode. • X-ray quality weld deposit. • Suitable for major structural work and bridging wide root gap. WELDING POSITION :. moisture than does the conventional type electrode. Fig. 2.8 shows the relationship between exposure time and the diffusible hydrogen content of the weld Bohler Welding Selection Guide SMAW / MMA. Within a given AWS classification, various electrodes with different coating types are available on the market.