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For API 5L welded pipe common types as Follows: ERW: Electric Resistance Welded, for pipe diameter normally under 24 inch. DSAW/SAW: Double Submerged Arc Welding / Submerged Arc Welding, a substitute welding method than ERW for larger diameter pipes. LSAW: Longitudinal SAW, for diameter up to 48 inch. Also called JCOE manufacturing process.See all results for this questionWhat kind of welding do you use to weld black pipe?You can weld black iron pipe because its made of mild steel, not iron. Black steel pipe can be welded using any welding method used for steel. This includes MIG, flux core, TIG, and stick arc welding. But black-pipe fittings are made of malleable black iron. Black-iron fittings are difficult to weld without causing damage to the fitting.See all results for this questionWhat are the different types of arc welding?Arc welding can use either direct or alternating currents, and uses consumable or non-consumable electrodes coated in flux. The temperatures in arc welding get up as high as 6,500 degrees Fahrenheit. Some of the most common uses for arc welding include steel erection, heavy equipment repair, pipeline welding and many major construction projects.See all results for this question
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