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S125551-035 - Hobart Hoballoy 9018-B3 Stick Electrode 5/32" (50lb Can)

Packaging: 50lb can
$9.12/lb $285.00/50lb can only $5.70/lbSave 37%

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OVERVIEW

Hobart Hoballoy 9018-B3 Stick Electrode: Precision for High-Temperature Applications

For industrial fabricators and maintenance professionals dealing with high-pressure, high-temperature environments, the Hobart Hoballoy 9018-B3 stick electrode is a critical consumable. This 5/32-inch diameter electrode comes in a heavy-duty 50lb can, ensuring you have ample supply for extensive piping or vessel projects. Specifically engineered for joining 2.25% Chromium and 1% Molybdenum steels, this electrode is a staple in the power generation and petrochemical sectors where material integrity under thermal stress is non-negotiable.

The Hoballoy 9018-B3 is an outstanding choice for applications requiring significant creep resistance. When steel components are subjected to constant stress at elevated temperatures, they can slowly deform over time—a phenomenon known as creep. The specific alloy composition of this Hobart electrode combats this effect, ensuring the longevity and safety of boilers, pressure vessels, and steam piping. Josef Gas recommends this product for certified welders who demand consistent chemical composition and mechanical properties to meet rigorous code requirements.

Beyond its metallurgical benefits, the Hoballoy 9018-B3 is designed for welder appeal. It features a specially formulated low-hydrogen coating that not only protects the weld pool from atmospheric contamination but also assists in producing a stable, smooth arc. The addition of iron powder to the coating increases deposition rates, allowing for faster travel speeds and improved productivity without sacrificing weld quality. The slag system is designed for easy removal, reducing post-weld cleanup time and minimizing the risk of slag inclusions in multi-pass welds.

Storage and handling are vital for low-hydrogen electrodes. This product is packaged in a hermetically sealed 50lb can to prevent moisture pickup during transit and storage. Once opened, it is highly recommended to store these electrodes in a rod oven to maintain their low-hydrogen status, preventing hydrogen-induced cracking in the heat-affected zone of the base metal. Whether you are repairing a heat exchanger or fabricating new high-pressure steam lines, the Hobart Hoballoy 9018-B3 delivers the reliability and performance professional welders trust.

Additional Information
Packaging Description:50lb can
Diameter:4.0mm
AWS Spec :E9018-B3
Position:ALL
Polarity:AC/DC-, DC+, DCEP, AC
Rod Type:Stick Electrode
Core Material:Chrome-Moly, Low Alloy Steel
Coating Type:Iron Powder, Low Hydrogen
AWS Classification:E9018-B3, E9018-B3 H4R
Welding Position:All Position
Applications:Petrochemical, Piping, Power Generation, Pressure Vessels
Tensile Strength:90,000 psi (min)
----- new values below ----
Rod Type:Stick Electrode
Core Material:Low Alloy Steel, Chrome-Moly
Coating Type:Low Hydrogen, Iron Powder
AWS Classification:E9018-B3, E9018-B3 H4R
Welding Position:All Position
Polarity:DCEP, AC
Applications:Power Generation, Petrochemical, Pressure Vessels, Piping
Storage Instructions:Store in a dry location, Recondition if exposed to moisture
Tensile Strength:90,000 psi (min)
brand:Hobart
diameter:4.0mm
packaging-description:50lb can
aws-spec:E9018-B3
position:all
polarity:dc, ac-dc

INCLUDED

  • 50 lb Can of Hobart Hoballoy 9018-B3 Stick Electrodes (5/32" Diameter)
  • Instruction Label

APPLICATIONS

  • Power Generation Plants (Steam Piping)
  • Petrochemical Refineries
  • Pressure Vessel Fabrication
  • Boiler Tubes and Heat Exchangers
  • High-Temperature Service Piping
  • Joining 2.25% Cr - 1% Mo Steels

FAQ

This electrode is classified as AWS A5.5 E9018-B3.

It is designed for welding low alloy steels containing nominally 2.25% Chromium and 1% Molybdenum.

Hoballoy 9018-B3 operates best on DCEP (Direct Current Electrode Positive) but can also be used with AC.

Yes, as a low-hydrogen electrode, it should be stored in a holding oven at 250°F-300°F after opening the can to prevent moisture pickup.

These electrodes have a diameter of 5/32 inch (approximately 4.0mm).

The B3 alloy (2.25% Cr, 1% Mo) provides excellent creep resistance and strength at high service temperatures.

This product comes in a 50lb (22.7 kg) industrial can.

Typically, yes. Chrome-moly steels usually require PWHT to relieve stress and achieve the desired mechanical properties.