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5500253000 - Esab OK 55.00 E7018-1 Low Hydrogen Stick Electrode 2.5mm

Packaging: 12.3kg pack
$20.97/kg $155.60/12.3kg pack only $12.65/kgSave 40%

In stock

OVERVIEW

Premium Quality Esab OK 55.00 E7018-1 Stick Electrodes

The Esab OK 55.00 is a high-performance, basic low-hydrogen electrode designed for the most demanding structural welding applications. Classified as an AWS E7018-1, this electrode is engineered to provide exceptional mechanical properties, particularly in terms of impact toughness at low temperatures. While standard E7018 electrodes are tested at -29°C, the E7018-1 designation ensures that the OK 55.00 maintains its ductility and impact strength down to -45°C. This makes it an indispensable consumable for industries operating in harsh environments, such as offshore drilling, shipbuilding, and heavy infrastructure construction in cold climates.

One of the standout features of the OK 55.00 is its resistance to hot cracking. The metallurgical formulation of the flux coating ensures a clean, high-quality weld deposit that is robust against the stresses of cooling and solidification. This is particularly critical when welding high-strength ship steels (Grades A, D, and E) and pressure vessels where weld integrity is paramount. The electrode produces a weld metal with very low hydrogen content, significantly reducing the risk of hydrogen-induced cold cracking (HICC), a common failure mode in thick-section steel welding.

Operators will appreciate the usability of the Esab OK 55.00. It offers a stable, concentrated arc that is easy to control in all positions, including vertical-up and overhead. The 2.5mm diameter is perfect for root passes in heavy plates or for welding thinner sections where heat input must be carefully managed. The slag system is designed to be easily detachable, leaving a smooth, regular bead profile that requires minimal post-weld cleanup. Whether you are using Alternating Current (AC) or Direct Current Electrode Positive (DCEP), the OK 55.00 delivers consistent, radiographic-quality results.

At Josef Gas, we understand that the quality of your consumables dictates the safety and longevity of your projects. The Esab OK 55.00 represents the gold standard in low-hydrogen stick electrodes, combining Esab's global manufacturing expertise with a formulation that meets the rigorous demands of modern engineering standards. Ensure your critical welds meet code requirements with the reliability of OK 55.00.

Additional Information
Packaging Description:12.3kg pack
AWS Spec :E7018-1
Diameter:2.5mm
Brand:Esab
Polarity:AC/DC-, DC+ / AC
Position:ALL
Amp Range:75-110amp
Rod Type:Stick Electrode
Coating Type:Basic, Low Hydrogen
Length :14", 350mm
Tensile Strength:70,000 psi (min)
----- new values below ----
Rod Type:Stick Electrode
Coating Type:Basic, Low Hydrogen
Length:14", 350mm
Tensile Strength:70,000 psi (min)
Impact Strength:High Low-Temp Toughness
Current Range:80-110 A
Brand:Esab
Diameter:2.5mm
AWS Spec:E7018-1
Polarity:DC+ / AC
Position:ALL

INCLUDED

  • Esab OK 55.00 E7018-1 Stick Electrodes (2.5mm x 350mm)
  • Protective Packaging

APPLICATIONS

  • Shipbuilding and Marine Construction (Grades A, D, E)
  • Pressure Vessel Fabrication
  • Offshore Platforms and Structures
  • Heavy Structural Steel Erection
  • Bridge Construction
  • General Fabrication of High-Strength Steels
  • Pipe Welding (Power Generation and Process Piping)

FAQ

The primary difference lies in the impact toughness requirements. E7018 is tested for impact strength at -29°C (-20°F), while E7018-1, like the Esab OK 55.00, is tested at a lower temperature of -45°C (-50°F), offering superior resistance to brittle fracture in cold environments.

For the 2.5mm diameter, the recommended current range is typically between 80 and 110 Amps. It can be run on both AC (Alternating Current) and DC+ (Direct Current Electrode Positive).

Yes, as a low-hydrogen electrode, Esab OK 55.00 should be stored in a holding oven or re-baked if exposed to the atmosphere for an extended period to prevent moisture absorption, which can cause hydrogen cracking.

Yes, the OK 55.00 is an all-position electrode. It has excellent characteristics for vertical-up welding, providing a stable shelf and good puddle control.

It is suitable for welding carbon-manganese steels, high-strength ship steels, and pressure vessel steels. It is ideal for materials where high impact strength and resistance to hot cracking are required.

Yes, the OK 55.00 is known for having a slag system that is easily detachable, leaving a clean and smooth weld bead profile.

These specific electrodes are 350mm (approximately 14 inches) in length.

CATALOGUE & SPEC SHEETS

Spec Sheet