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S119951-033 - Hobart 418 5/32" E7018-1 Low Hydrogen Stick Electrode (10lb Can)

Packaging: 30lb can
$10.64/lb $199.50/30lb can only $6.65/lbSave 37%

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OVERVIEW

Hobart 418 5/32" E7018-1 Stick Electrode (10 lb Can)

The Hobart 418 is a premium quality, low-hydrogen stick electrode designed for heavy-duty welding applications where weld integrity and impact toughness are paramount. Classified as an AWS E7018-1 H4R, this electrode is engineered to provide superior mechanical properties, particularly in low-temperature environments. It is the go-to choice for professional welders working on structural steel, pressure vessels, and critical infrastructure projects. The 5/32-inch diameter is ideal for filling joints in thicker plate materials, offering high deposition rates and excellent efficiency.

One of the standout features of the Hobart 418 is its exceptional arc stability and ease of use. Whether you are welding in the flat, horizontal, vertical, or overhead positions, this rod delivers a smooth, consistent arc with minimal spatter. The slag system is designed for easy removal, often peeling away on its own, which reduces cleanup time and improves productivity. The "H4R" designation signifies that the electrode has a very low diffusible hydrogen content (less than 4ml per 100g) and is moisture-resistant, significantly reducing the risk of hydrogen-induced cracking and porosity in the weld metal.

This electrode is formulated to operate effectively on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing versatility for various power sources. Its iron powder coating assists in higher deposition rates compared to non-iron powder electrodes, making it a productive choice for heavy fabrication. The 10 lb hermetically sealed can ensures that the electrodes remain factory-fresh and dry until opened, which is critical for maintaining low-hydrogen status.

Key Applications

The Hobart 418 is widely used across demanding industries including petrochemical plants, power generation facilities, and shipbuilding. It is specifically recommended for welding low-alloy structural steels, high-carbon castings, and mining equipment where dynamic loading and cold temperatures may be factors. Its ability to produce X-ray quality welds makes it a trusted consumable for code work involving boilers, piping, and railcar construction.

Additional Information
Packaging Description:10 lb can, 30lb can
AWS Spec :E7018-1
Diameter:4.0mm, 5/32"
Polarity:DC+ / AC, DCEP, AC
Position:ALL
Amp Range:135-220amp
AWS Classification:E7018-1, H4R
Rod Type:Stick Electrode
Coating Type:Iron Powder, Low Hydrogen
Welding Position:All Position
Tensile Strength:70,000 psi (min)
Packaging Type:Hermetically Sealed Can
----- new values below ----
AWS Classification:E7018-1, H4R
Diameter:5/32"
Rod Type:Stick Electrode
Coating Type:Low Hydrogen, Iron Powder
Welding Position:All Position
Polarity:DCEP, AC
Tensile Strength:70,000 psi (min)
Packaging Type:Hermetically Sealed Can
Brand:Hobart
AWS Spec:E7018-1
Diameter:4.0mm
Packaging Description:10 lb can
Polarity:DC+ / AC
Position:ALL
Amp Range:135-220amp

INCLUDED

  • 10 lb Can of Hobart 418 5/32" Stick Electrodes
  • Instruction Label

APPLICATIONS

  • Low alloy structural steel fabrication
  • Boiler and pressure vessel construction
  • Power generation and petrochemical plants
  • Heavy equipment manufacturing and repair
  • Railcar and locomotive construction
  • Shipbuilding and offshore structures
  • Mining equipment maintenance
  • Infrastructure repair (bridges, pipelines)

FAQ

The E7018-1 classification indicates that the electrode has been tested to provide better impact toughness at lower temperatures (-50°F) compared to standard E7018 electrodes, which are typically tested at -20°F.

The recommended amperage range for the 5/32" diameter is typically between 135 and 220 Amps, depending on the welding position and base metal thickness.

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

Yes, Hobart 418 is designed to operate with excellent stability on both AC (Alternating Current) and DCEP (Direct Current Electrode Positive).

'H4' means the weld metal contains less than 4ml of diffusible hydrogen per 100g. 'R' indicates the coating is moisture-resistant and has passed specific moisture absorption tests.

Yes, Hobart 418 is an all-position electrode, meaning it can be used for flat, horizontal, vertical (up), and overhead welding.

It is suitable for welding carbon and low-alloy steels, including A36, A516, A572, and other structural grade steels.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet