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OK 68.53

OK 68.53

OK 68.53 is a coated electrode for welding austenitic-ferritic steels of Super Duplex types, e.g. SAF 2507 and Zeron 100. OK 68.53 has good welding characteristics in all positions and the slag is easily detachable.

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Typical Tensile Properties

ISO As welded
Elongation Tensile Strength Yield Strength
30 % 850 MPa 700 MPa

Charpy V-Notch Properties

ISO As welded
Impact Value Testing Temperature
50 J 20 °C
40 J -40 °C

Weld Metal Analysis

MoCSiFerrite FNNiNCr
4 %0.03 %0.6 %39 %10.3 %0.25 %25.2 %

Approvals: CE; EN 13479; DNV-GL; Duplex; VdTÜV; 07377
Classifications: EN ISO 3581-A; E 25 9 4 N L R 32; SFA/AWS A5.4; E2594-16; Werkstoffnummer; (1.4410)

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

Alloy Type: Austenitic-ferritic CrNiMo
Coating Type: Basic Rutile
Ferrite Content: FN 35-50
Welding Current: DC+, AC