diamondspark S 56 HP is a seamless flux-cored wire for submerged arc welding of mild steel, made for the multi-run technique as well as the two-run technique.
The wire is used on mechanised stations, on butt welds in plate and circumferential welds on tanks. Its seamless sheath protects the core against moisture even after long storage.
- Classification EN ISO: 14171-A, TZ3
- AWS classification: A5.17 / SFA-5.17, EC1
- Shielding: flux matched to the wire, no shielding gas
Match the voltage to the wire feed speed, too low a setting gives a convex bead and no fusion into the edges. Keep an even flux layer over the arc, too thin a layer exposes the arc and too thick a one spoils the bead shape. Watch the wire stick-out and the position of the head against the weld centre line, under a flux you cannot see the pool and a mistake shows only after the slag is chipped off. On heavier sections and in a cold workshop plan the preheating.
