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.
Typical Charpy V-Notch Properties
|Impact Value||Testing Temperature|
|as welded iso|
|40 J (30 ft-lb)||-40 degC (-40 degF)|
|50 J (37 ft-lb)||20 degC (68 degF)|
Typical Tensile Properties
|Condition||Elongation||Shielding Gas||Tensile Strength||Yield Strength|
|As Welded||30 %||ISO||850 MPa (123 ksi)||700 MPa (102 ksi)|
|Current||Deposition Rate @ 90% I max||Diameter||Deposition Efficiency (%)||Number of electrodes/kg weld metal||Voltage|
|55-85 A||43 sec||0.9 kg/h (2,0 lb/h)||2.5 x 300.0 mm (0.098 x 11,8 in.)||60 %||94||22 V|
|70-110 A||62 sec||1.2 kg/h (2,6 lb/h)||3.2 x 350.0 mm (1/8 x 13,8 in.)||60 %||47||22 V|
|80-150 A||67 sec||1.7 kg/h (3,7 lb/h)||4.0 x 350.0 mm (5/32 x 13,8 in.)||60 %||32||23 V|
EN ISO 3581-A : E 25 9 4 N L R 32
SFA/AWS A5.4 : E2594-16
Werkstoffnummer : (1.4410)
CE EN 13479
|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|
Typical Weld Metal Analysis %
|Typical Weld Metal Analysis %|
|0.03 %||25.2 %||4 %||0.25 %||10.3 %||0.6 %||39 %|
How to purchase OK 68.53
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