Esab Sureweld 810P description: Sureweld 810P is an all-position cellulosic electrode that is especially suited for welding high strength pipe. It produces the consistent, deep penetration required to maintain a proper keyhole when vertical-down welding in open root pipe joints. X-ray quality joints can be produced with Sureweld 810P using flat, horizontal, overhead, vertical-up and vertical-down welding procedures. Sureweld 810P is recommended for welding API grades X60, X65, and X70 pipe.