Features
- H4 R approved for critical applications
- Low diffusible hydrogen (< 4.0 ml/100 g) to reduce cold‐cracking risk
- Outstanding low moisture pick‐up and absorption
- High deposition efficiency for improved productivity
- Excellent weldability and high welding speed in vertical‐up position
- Exceptional, crack‐resistant weld appearance
- General‐purpose electrode for carbon and carbon‐manganese steels
- Insensitive to base material composition variations
- Tested and compliant with NACE TM0177 and TM0284 standards
- Tough, ductile weld metal with balanced mechanical properties
Specifications
Last Modified | 28/06/2025, 08:25:11 |
Weight | 18 kg |
Length | 45 cm |
Data Sheet | https://esab.com/gb/eur_en/products-solutions/filler-metals-pdf?filename=mdm-productfamily-13201&siteid=eur_en&countryname=GBR&countrylocale=en-zz |
Classifications | SFA/AWS A5.1: E7018 H4 R; EN ISO 2560-A: E 42 4 B 42 H5 |
Approvals | ABS: 3Y H5; BV: 3Y H5; CE/UKCA: EN 13479; DB: 10.039.12; DNV-GL: 3 YH5; LR: 3Y H5; PRS: 3Y H5; RINA: 3Y H5; VdTÜV: 00690 |
Welding Current | DC+(-) |
Diffusible Hydrogen | < 4.0 ml/100 g |
Alloy Type | Carbon Manganese |
Coating Type | Basic covering |
Typical Tensile Properties (As-Welded) | Yield Strength: 475 MPa; Tensile Strength: 565 MPa; Elongation: 29 % |
Typical Charpy V-Notch Properties | AWS As-Welded at ‑30 °C: 130 J; ISO As-Welded at ‑40 °C: 115 J |
Typical Weld Metal Analysis (%) | C: 0.06; Mn: 1.1; Si: 0.5 |
Deposition Data (5.0×450 mm) | Current: 190–260 A; Voltage: 24 V; Efficiency: 75 %; Fusion Time @90 % Iₘₐₓ: 99 s; Deposition Rate: 2.61 kg/h |
Summary
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
4 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
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