diamondspark S 550 HP is a seamless flux-cored wire for submerged arc welding, low alloyed and high strength, built for high productivity with a yield strength above 550 MPa.
The wire is used on mechanised stations, on butt welds in plate and circumferential welds on tanks. Its seamless construction limits moisture pick-up in the core, the deposition rate shortens the time needed to fill heavier grooves, and it works as a set with a matched flux.
- Classification EN ISO: 14171-A, TZ3Ni1Mo
- AWS classification: A5.23 / SFA-5.23, ECNi5
- Shielding: flux matched to the wire, no shielding gas
Do not exceed the permitted interpass temperature, an overheated heat affected zone loses its toughness. Match the flux to this wire and check how dry it is, drying the flux decides the hydrogen level in the weld. Keep an even flux layer over the arc, too thin a layer exposes the arc and too thick a one spoils the bead shape.
