Caution
① Dry at 300~350℃(572~662℉) for 60 minutes before use.
② Use welding current and speed as low as possible at the first layer of groove to avoid cracking.
③ If weld heat input is managed below 30KJ/cm, a better impact toughness can be achieved.
④ When restraint stress is high or welding a thick plate, preheat according to rules.
Purpose
① Shipbuilding
② High strength steels (EH47)
Attribute
① Good impact value at low temperature and high tensile strength
② Single and multi electrode welding applicable
③ Density : 1.2g/cm3