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OK 73.68

Nickel alloyed basic AC/DC electrode for welding low alloyed steels with impact requirements down to -60 ᄚC, e.g. in offshore/onshore applications. The electrode is CTOD-tested.

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Highlights

Process

Specifications
Classifications SFA/AWS A5.5 : E8018-C1
EN ISO 2560-A : E 46 6 2Ni B 32 H5
Approvals ABS : 3Y400 H5
BV : 5Y40M H5
CE : EN 13479
DNV-GL : 5 Y46H5
LR : 5Y42 H5
PRS : 5Y42 H5
UKCA : EN 13479
VdTÜV : 01529
Welding Current AC, DC+
Diffusible Hydrogen < 5.0 ml/100g
Alloy Type Low alloyed (2.5 % Ni)
Coating Type Basic covering
Min AC OCV 65
Tensile_Properties
Testing Condition Yield Strength Tensile Strength Elongation
AWS
Stress Relieved
1 hour(s) 620 °C
500 MPa 600 MPa 28 %
ISO
As Welded 540 MPa 635 MPa 25 %
Charpy Testing
Testing Condition Testing Temp Impact Value
AWS
Stress Relieved
1 hour(s) 620 °C
-60 °C 85 J
ISO
As Welded -20 °C 155 J
As Welded -40 °C 117 J
As Welded -60 °C 99 J
Typical Weld Metal Analysis %
C Mn Si Ni Cr Mo
0.05 1 0.35 2.4 0.02 0.01
Deposition Data
Diameter Amps Volts Efficiency (Per) Fusion time per electrode at 90Per I max Deposition rate at 90Per
2.5 x 350 mm 70-110 A 23 V 62 % 55 sec 0.9 kg/h
3.2 x 450 mm 105-150 A 23 V 62 % 81 sec 1.4 kg/h
4.0 x 450 mm 140-190 A 23 V 65 % 88 sec 2.0 kg/h
5.0 x 450 mm 190-270 A 27 V 65 % 104 sec 2.5 kg/h
Description Product Number
OK 73.68 3.2x450mm 1/2 VP 73683240G0
OK 73.68 2.5x350mm 1/2 VP 73682530G0
OK 73.68 4.0x450mm 3/4 VP 73684040V0
OK 73.68 5.0x450mm 3/4 VP 73685040V0

Fact Sheets

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OK 73.68

Welding Invented

When our founder Oscar Kjellberg developed the world's first coated welding electrode in 1904, he launched a company whose innovation and uncompromising standards have helped create the history of welding itself. This legacy continues in the quality, performance, and continuous development of the covered electrodes we make today.

Factory Fresh Low Alloy Electrodes, Straight from the Pack

ESAB's VacPac™ packaging is hermetically sealed and vacuum-packed to protect low alloy electrodes from moisture pick up and re-absorption from the air. Electrodes can be used straight from the package without the need to re-bake them or you can store them temporarily in holding ovens and quivers. Get fresh, dry low alloy covered electrodes every time with ESAB.

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