Shielded Metal Arc Welding

SMAW (shielded metal arc welding), commonly referred to as “stick” welding, is strictly a manual process that uses a consumable flux-coated metal electrode to provide filler metal, flux, and slag. (See Figures 600-8 and 600-9.)

The SMAW process is the most versatile welding process used for pressure vessel fabrication. It can be used for all positions, thicknesses, and joint designs; and it is equally suited for shop or field fabrication. This process is preferred for pressure vessel nozzle and attachment welds. It is also acceptable for circumferential and longitudinal welds in lieu of the typically used SAW process (discussed below).

Typical Welding Circuit for Shielded Metal Arc Welding

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