OK 68.81 is a high-alloyed electrode which deposits a ferritic-austenitic duplex weld metal with approx. 40% ferrite. It is resistant to stress corrosion and is highly insensitive to dilution. Good scaling resistance up to 1150°C. OK 68.81 is used for joining dissimilar steels, steels with reduced weldability and buffer layers before hard facing. Applications: rolls, forging dies, hot-work tools, dies for plastics and so on.
Classifications
EN 14700 - E Fe11, EN ISO 3581-A - E 29 9 R 3 2, SFA/AWS A5.4 - E312-17, Werkstoffnummer - 1.4337