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OK 48.00

A reliable, general purpose electrode for manual metal arc welding of carbon steels, carbon manganese steels and fine-grained carbon manganese steels with elevated yield strength. OK 48.00 deposits a tough, crack-resistant weld metal. The coating is of the low moisture absorption type. High welding speed in the vertical-up position. OK 48.00 is insensitive to the composition of the base material within fairly wide limits. The electrode can be used for welding structures where difficult stress conditions cannot be avoided. Tested according to NACE TM0177 and TM0284. Diffusible Hydrogen tested in various conditions show values below 3 ml/100g.

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Highlights

• H4 R approved

• Low diffusible hydrogen to reduce the risk for cold cracking

• Outstanding low moisture pick up

• High efficiency bringing productivity

• Extremely good weldability in vertical up position

• Exceptional weld appearance

Process

Description Product Number
OK 48.00 1.6×300mm 4800162010
OK 48.00 2.0×300mm 4800202010
OK 48.00 2.5×350mm 4800253000
OK 48.00 3.2×350mm 4800323000
OK 48.00 3.2×450mm 4800324000
OK 48.00 4.0×350mm 4800403000
OK 48.00 4.0×450mm 4800404000
OK 48.00 5.0×450mm 4800504000
OK 48.00 6.0×450mm 4800604000
OK 48.00 7.0×450mm 4800704000
OK 48.00 2.0×300mm 1/4 VP 48002020K0
OK 48.00 2.5×350mm 1/4 VP 48002530K0
OK 48.00 2.5×350mm 1/2 VP 48002530G0
OK 48.00 2.5×350mm 3/4 VP 48002530V0
OK 48.00 3.2×350mm 1/2 VP 48003230G0
OK 48.00 3.2×350mm 3/4 VP 48003230V0
OK 48.00 3.2×450mm 1/2 VP 48003240G0
OK 48.00 3.2×450mm 3/4 VP 48003240V0
OK 48.00 4.0×350mm 1/2 VP 48004030G0
OK 48.00 4.0×450mm 3/4 VP 48004040V0
OK 48.00 5.0×450mm 3/4 VP 48005040V0
OK 48.00 6.0×450mm 3/4 VP 48006040V0

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

Welding Current DC+(-)
Diffusible Hydrogen < 4.0 ml/100g
Alloy Type Carbon Manganese
Coating Type Basic covering
Tensile_Properties
Testing Condition Yield Strength Tensile Strength Elongation
ISO
As Welded 475 MPa 565 MPa 29 %
Tensile_Properties
Testing Condition Yield Strength Tensile Strength Elongation
ISO
As Welded 475 MPa 565 MPa 29 %
Typical Weld Metal Analysis %
C Mn Si
0.06 1.1 0.5
Deposition Data
Diameter Amps Volts Efficiency (Per) Fusion time per electrode at 90Per I max Deposition rate at 90Per
1.6 x 300 mm 30-55 A 24 V 59 % 50 sec 0.38 kg/h
2.0 x 300 mm 55-90 A 22 V 65 % 45 sec 0.63 kg/h
2.5 x 350 mm 70-110 A 24 V 67 % 57 sec 0.96 kg/h
3.2 x 350 mm 90-140 A 23 V 70 % 68 sec 1.24 kg/h
3.2 x 450 mm 90-140 A 23 V 73 % 85 sec 1.33 kg/h
4.0 x 350 mm 120-190 A 24 V 70 % 75 sec 1.63 kg/h
4.0 x 450 mm 120-190 A 24 V 71 % 92 sec 1.76 kg/h
5.0 x 450 mm 190-260 A 24 V 75 % 99 sec 2.61 kg/h
6.0 x 450 mm 220-340 A 26 V 80 % 97 sec 3.88 kg/h
7.0 x 450 mm 280-410 A 27 V 79 % 104 sec 4.83 kg/h
Description Product Number
OK 48.00 1.6×300mm 4800162010
OK 48.00 2.0×300mm 4800202010
OK 48.00 2.5×350mm 4800253000
OK 48.00 3.2×350mm 4800323000
OK 48.00 3.2×450mm 4800324000
OK 48.00 4.0×350mm 4800403000
OK 48.00 4.0×450mm 4800404000
OK 48.00 5.0×450mm 4800504000
OK 48.00 6.0×450mm 4800604000
OK 48.00 7.0×450mm 4800704000
OK 48.00 2.0×300mm 1/4 VP 48002020K0
OK 48.00 2.5×350mm 1/4 VP 48002530K0
OK 48.00 2.5×350mm 1/2 VP 48002530G0
OK 48.00 2.5×350mm 3/4 VP 48002530V0
OK 48.00 3.2×350mm 1/2 VP 48003230G0
OK 48.00 3.2×350mm 3/4 VP 48003230V0
OK 48.00 3.2×450mm 1/2 VP 48003240G0
OK 48.00 3.2×450mm 3/4 VP 48003240V0
OK 48.00 4.0×350mm 1/2 VP 48004030G0
OK 48.00 4.0×450mm 3/4 VP 48004040V0
OK 48.00 5.0×450mm 3/4 VP 48005040V0
OK 48.00 6.0×450mm 3/4 VP 48006040V0

Fact Sheets

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OK 48.00

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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