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The ESAB 693000192 is a triangle-profile ceramic weld backing strip used to support molten weld metal during single-sided fusion welding. Each piece measures 1 inch in length and is cut at a 45-degree angle, allowing it to conform to angled joints and corner welds where flat backing would not seat properly. Ceramic backing holds its shape under arc heat without bonding to the base metal, which results in a clean, full-penetration root pass on the back side of the joint. Welders and fabricators use this type of consumable backing to eliminate back-gouging and achieve code-quality root beads in a single setup.
This backing is suited for structural steel fabrication, pipe fitting, and general metal joining work where a weld joint must be completed from one side only. The 45-degree triangle geometry makes it particularly useful on mitered corners, angular butt joints, and fillet-adjacent configurations. Each box contains 24 pieces, providing enough backing for a focused run of joints on a typical production or field repair job. Installation requires no special tools beyond standard joint fit-up and clamping practice.
Designed as an OEM-style ceramic backing consumable for single-sided fusion welding applications on ferrous and compatible base metals where triangle-profile, angled backing geometry is specified.
Ceramic weld backing is typically applied by qualified welders or fitting tradespeople working to AWS, ASME, or applicable structural welding codes. Ensure the joint surfaces are clean, dry, and properly fit up before positioning the backing strip firmly against the root opening. Secure the backing with tape or a backing holder so it remains seated throughout the weld pass. Do not reuse ceramic backing pieces after welding, as thermal cycling compromises their structural integrity.
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