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S125681-035 - Hobart Hoballoy E9018-M Low Alloy Stick Electrode 1/4" 50lb

Packaging: 50lb can
$9.48/lb $296.50/50lb can only $5.93/lbSave 37%

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OVERVIEW

Heavy-Duty Performance: Hobart Hoballoy 9018-M

When your project demands more than just a standard mild steel weld, the Hobart Hoballoy 9018-M is the heavy-hitter you need in your stinger. Designed for the professional welder tackling high-strength steel projects, this rod bridges the gap between standard 7018s and specialized high-tensile consumables. If you are repairing crane booms, welding on heavy earthmoving equipment, or fabricating pressure vessels that require 90,000 psi tensile strength, this is the rod that ensures your welds hold up under extreme pressure and load.

The 1/4-inch diameter is a beast of a rod, built for serious production. It allows you to lay down metal fast and efficiently, perfect for filling large bevels on thick plate without spending all day changing rods. Because it is an iron powder electrode, you get a smooth, consistent arc with minimal spatter, and the slag practically peels itself off, saving you valuable cleanup time with the chipping hammer. The puddle is fluid yet controllable, giving you the confidence to produce professional, defect-free beads that pass inspection every time.

Moisture is the enemy of high-strength welds, leading to cracking and failure. Hobart packs these rods in a hermetically sealed 50-pound can, ensuring they arrive factory-fresh and bone dry. The low-hydrogen coating is formulated to resist moisture pickup even in humid shop environments, giving you a longer window of use once the can is cracked open. Whether you are in the field or the fab shop, the Hoballoy 9018-M delivers the mechanical properties and runability you expect from the Hobart name, making it a go-to choice for critical heavy-duty repairs and fabrication.

Additional Information
Brand:Hobart
AWS Spec:E9018-M
Diameter:6.4mm (1/4")
Packaging Description:50lb can
Polarity:DCEP
Position:Flat/Horizontal
Amp Range:300-400 A
Tensile Strength:90,000 psi
Yield Strength:78,000 - 90,000 psi
Coating Type:Low Hydrogen Iron Powder
Material Composition:Low Alloy Steel
Diffusible Hydrogen:H4 (<4ml/100g)

INCLUDED

  • 50 lb Hermetically Sealed Can of Hoballoy 9018-M Stick Electrodes (1/4" Diameter)
  • Instruction Label

APPLICATIONS

  • Heavy Earthmoving and Mining Equipment
  • Crane Booms and Lifting Gear
  • Petrochemical Pressure Vessels
  • High-Strength Structural Steel Fabrication
  • Military Hardware and Vehicles
  • Railcar Construction and Repair

FAQ

This electrode is classified as AWS E9018-M, indicating a 90,000 psi minimum tensile strength, low hydrogen coating, and specific military-grade mechanical properties.

For the 1/4-inch diameter Hoballoy 9018-M, the recommended amperage range is typically between 300 and 400 Amps on DCEP.

The 1/4-inch diameter is generally too large for vertical or overhead welding due to the large weld puddle. It is best suited for Flat and Horizontal fillet welds.

The 'M' suffix historically referred to military specifications but in AWS A5.5 it designates an electrode that meets specific chemical composition and mechanical property requirements, often higher toughness and strength than standard grades.

As low-hydrogen electrodes, they should be stored in a holding oven at 250°F-300°F (120°C-150°C) after opening to prevent moisture pickup. If exposed to air for too long, they may require reconditioning.

It is designed for high-strength low-alloy (HSLA) steels, such as ASTM A514, A517, and other quenched and tempered steels requiring 90ksi tensile strength matching.

Hoballoy 9018-M is designed to operate on Direct Current Electrode Positive (DCEP) for best results.
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