Rankin Industries says its Rantube large-diameter tubular hardfacing electrodes combat parts wear in heavy industry caused by severe abrasion, erosion, impact, and heat. Rantube deposition rates are up to 6.5 lb/h for the 7/16-in. (11 mm) size, while the 1/4-in. size is designed for all-position welding and can be used at low amperage to hardface thin edges. Rantube can be applied to heavy industry parts made from cast iron, manganese steel, and mild steel without preheat. High carbon and alloy steels may require preheat. Electrodes are available in three large diameters and include a graphite end seal for quick arc start; flux coating to prevent damage if dropped and to allow non-heated storage; high-density alloy powder fill; a steel case that seals the tubular section containing alloys to prevent contamination, moisture pickup, or alloy loss if the electrode is dropped; and color coding for alloy identification.

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