Use of a melting steel welding electrode in the form of a steel wire or rod for coated arc welding under a liquid

摘要

1532217 Steel alloy BRITISH STEEL CORP 12 Dec 1975 [12 Dec 1974] 53806/74 Addition to 1475072 Heading C7A A steel alloy, suitable for consumable welding rod or wire, contains C 0À15 max Mn 0À5-1À5 Si 0À03-0À10 MO less than 0À2 Al 0À05 max Ti 0À03-0À05 B 0À002-0À008 S 0À04 max P 0À04 max Fe Bal & impurities The manufacture of the wire may be by standard techniques, with the Al, Ti and B being added last. The rod or wire may be coated with up to 0À15 wt. per cent of copper, and is suitable in submerged arc or electro-slag welding. Preferably, a basic type of flux is used in welding to reduce oxidation and erosion and improve conductivity.