Skip to Main Content
Canadian
Canadian owned and operated

S125581-035 - Hobart Hoballoy 9018-B3 1/4" Stick Electrodes (50lb Can)

Packaging: 50lb can
$10.52/lb $329.00/50lb can only $6.58/lbSave 37%

Usually ships within 3-5 business days

OVERVIEW

Industrial Grade Chrome-Moly Welding Electrodes

The Hobart Hoballoy 9018-B3 is a premium low-alloy stick electrode designed specifically for the welding of 2.25% Chromium, 1% Molybdenum steels. Engineered for critical industrial applications, this electrode provides exceptional creep resistance and high tensile strength, making it an essential consumable for power generation, petrochemical, and refinery maintenance operations. The 1/4-inch diameter is particularly suited for heavy fill passes in flat and horizontal positions, allowing for efficient deposition rates on thick-walled piping and pressure vessels.

Meeting AWS E9018-B3 H4R specifications, this electrode features a moisture-resistant coating that maintains low hydrogen levels, significantly reducing the risk of hydrogen-induced cracking. This is crucial when working with chrome-moly steels which are susceptible to cracking if proper pre-heat and interpass temperatures are not maintained. The Hoballoy 9018-B3 delivers X-ray quality welds with excellent mechanical properties, ensuring the structural integrity of components operating at elevated temperatures.

Packaged in a hermetically sealed 50lb can, these electrodes are protected from atmospheric moisture until the moment they are opened, ensuring optimal performance right out of the box. Josef Gas provides these high-performance consumables to support rigorous fabrication standards in the energy and heavy industrial sectors.

Additional Information
Packaging Description:50lb can
AWS Spec :E9018-B3
Diameter:1/4" (6.4mm)
Polarity:DC+, AC
Position:Flat/Horizontal
Material Composition:1% Molybdenum, 2.25% Chromium, Low Alloy Steel
Rod Type:Stick Electrode
Coating Type:Basic, Low Hydrogen
Tensile Strength:90,000 psi (min)
Welding Position:Flat, Horizontal
----- new values below ----
Material Composition:Low Alloy Steel, 2.25% Chromium, 1% Molybdenum
Rod Type:Stick Electrode
Coating Type:Basic, Low Hydrogen
Tensile Strength:90,000 psi (min)
Welding Position:Flat, Horizontal
Moisture Resistance:H4R
Brand:Hobart
AWS Spec:E9018-B3
Diameter:1/4" (6.4mm)
Packaging Description:50lb can
Polarity:DC+, AC
Position:Flat/Horizontal

INCLUDED

  • 50 lb Can of Hobart Hoballoy 9018-B3 1/4" Stick Electrodes
  • Hermetically Sealed Packaging

APPLICATIONS

  • Power Generation Plants
  • Petrochemical Refineries
  • Pressure Vessels and Boilers
  • High-Temperature Steam Piping
  • P22 Alloy Steel Fabrication
  • Heavy Wall Pipe Welding

FAQ

E9018-B3 electrodes are specifically designed for welding 2.25% Chromium, 1% Molybdenum steels used in high-temperature and high-pressure applications like steam piping and pressure vessels.

Due to the large 1/4" diameter and the fluidity of the puddle, this size is typically restricted to Flat and Horizontal Fillet positions. Smaller diameters are required for out-of-position welding.

Yes, as a low-hydrogen electrode, once the hermetically sealed can is opened, the electrodes should be stored in a rod oven at 250°F-300°F to prevent moisture pickup.

Hobart Hoballoy 9018-B3 operates on DCEP (Direct Current Electrode Positive) or AC. For the 1/4" size, higher amperage ranges (typically 300-400A) are necessary.

Yes, welding 2.25% Cr - 1% Mo steels generally requires pre-heating and specific interpass temperatures to prevent cracking and ensure proper mechanical properties.

H4R indicates the electrode meets strict diffusible hydrogen limits (less than 4ml per 100g) and is moisture resistant (R), ensuring high-quality welds with low cracking risk.

While it can physically weld P11, E9018-B3 is over-alloyed for P11 (1.25% Cr). It is best matched for P22 (2.25% Cr) materials. Always check your engineering specifications.