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OK 68.81

OK 68.81

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 prior to hardfacing. Applications: rolls, forging dies, hot-work tools, dies for plastics and so on.

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Typical Tensile Properties

As welded
Elongation Tensile Strength Yield Strength
25 % 114.5 ksi 88.5 ksi

Typical Charpy V-Notch Properties

As welded
Impact Value Testing Temperature
22 ft-lb 68 °F

Typical Weld Metal Analysis %

MnMoCSiFerrite FNNiNCr
0.9 %0.04 %0.13 %0.7 %40 %10.2 %0.09 %28.9 %

Approvals: CE; EN 13479; Seproz; UNA 272580
Classifications: EN 14700; E Fe11; EN ISO 3581-A; E 29 9 R 3 2; SFA/AWS A5.4; E312-17; Werkstoffnummer; 1.4337

Approvals are based on factory location. Please contact ESAB for more information.

Alloy Type: IMPERIAL_Stainless duplex
Coating Type: Acid Rutile
Ferrite Content: FN 30 - 50
Welding Current: DC+, AC

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