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OK 48.50

General purpose AC and DC+(-) basic electrode for mild and low alloy steels. The running characteristics are very good. It is a Low Moisture Absorption (LMA) type coating.

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Highlights

Process

Specifications
Classifications SFA/AWS A5.1 : E7018-1 H4R
EN ISO 2560-A : E 42 4 B 32 H5
Approvals ABS : 3Y H5
BV : 3Y H5
CE : EN 13479
DNV : 3Y H5
LR : 3Y H5
RINA : 3Y H5
UKCA : EN 13479
VdTÜV : 11813

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

Specifications
Classifications SFA/AWS A5.1 : E7018-1 H4R
EN ISO 2560-A : E 42 4 B 32 H5
Approvals ABS : 3Y H5
BV : 3Y H5
CE : EN 13479
DNV : 3Y H5
LR : 3Y H5
RINA : 3Y H5
UKCA : EN 13479
VdTÜV : 11813
Specifications
Classifications SFA/AWS A5.1 : E7018-1 H4R
EN ISO 2560-A : E 42 4 B 32 H5
Approvals ABS : 3Y H5
BV : 3Y H5
CE : EN 13479
DNV : 3Y H5
LR : 3Y H5
RINA : 3Y H5
UKCA : EN 13479
VdTÜV : 11813
Charpy Testing
Testing Condition Testing Temp Impact Value
ISO
As Welded -40 °C 70 J
Typical Weld Metal Analysis %
C Mn Si
0.07 1.09 0.49
Deposition Data
Diameter Amps Volts Efficiency (Per) Fusion time per electrode at 90Per I max Deposition rate at 90Per
2.0 x 300 mm 55-90 A 22 V 65 % 45 sec 0.63 kg/h
2.5 x 300 mm 70-110 A 23 V 60 % 53 sec 0.8 kg/h
2.5 x 350 mm 70-110 A 22 V 63 % 63 sec 0.8 kg/h
3.2 x 450 mm 100-150 A 23 V 64 % 92 sec 1.2 kg/h
4.0 x 450 mm 130-200 A 22 V 65 % 101 sec 1.6 kg/h
5.0 x 450 mm 160-260 A 22 V 68 % 109 sec 2.3 kg/h
Description Product Number
OK 48.50 2.5×350mm 4850253600
OK 48.50 2.5×350mm 3/4 VP 48502536V0
OK 48.50 3.2×450mm 4850324600
OK 48.50 3.2×450mm 1/2 VP 48503246G1
OK 48.50 3.2×450mm 3/4 VP 48503246V0
OK 48.50 4.0×450mm 4850404600
OK 48.50 4.0×450mm 3/4 VP 48504046V0
OK 48.50 5.0×450mm 3/4 VP 48505046V0

Fact Sheets

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OK 48.50

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 mild steel welding electrodes we make today.

Consistent Performance and Quality, Every Time

Performance is still what sets ESAB covered electrodes apart. No matter the job at hand, with ESAB mild steel and low hydrogen electrodes you are assured of good penetration, consistent mechanical properties, and X-ray quality welds from batch to batch.

Setting the Standard in Covered Electrodes

ESAB covered electrodes exceed industry criteria for low moisture pick up (moisture pick up 0 to 1000°C < 0.4 after 9 hours at 274°C, 80% HR). You can trust ESAB low hydrogen and mild steel electrodes to deliver tough mechanical properties in high or low temperature environments, high humidity worksites, or the most challenging positional welding projects. Plus, their easy-to-use nature make them a simple choice for welders of all skill levels.

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