S119932-045 - Hobart 418 E7018-1 H4R Stick Electrode 3/32 Inch 5lb Pack

Hobart 418 Low Hydrogen Stick Electrode Overview

The Hobart 418 is a premium quality, general-purpose low hydrogen electrode designed to meet the rigorous demands of industrial fabrication and infrastructure repair. Assigned the internal SKU S119932-045, this electrode is engineered to deliver consistent mechanical properties and exceptional weldability across a wide range of applications. It carries the AWS classifications E7018 H4R and E7018-1 H4R, indicating its suitability for critical welding tasks where hydrogen-induced cracking must be minimized and impact toughness is required.

With a diameter of 3/32 inch (2.4 mm), this electrode is versatile enough for both root passes and fill passes on mild steel and low alloy structural components. The "H4R" designation signifies that the electrode coating is moisture-resistant, maintaining low hydrogen levels (less than 4ml per 100g of weld metal) even after exposure to humid environments for extended periods compared to standard electrodes. This makes the Hobart 418 a reliable choice for industries such as power generation, petrochemical processing, and offshore construction where weld integrity is paramount.

The electrode is packaged in a durable 5 lb (2 kg) Plastic Pak, which provides excellent protection against moisture ingress during storage and transport. This packaging solution is particularly beneficial for maintenance and repair operations where large bulk containers are impractical. The Hobart 418 operates effectively on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), offering flexibility for shops with varying power source capabilities. Its formulation supports single and multiple pass welding in all positions—flat, horizontal, vertical up, and overhead—ensuring that complex joints in difficult-to-reach areas can be welded with confidence.

Primary applications for the Hobart 418 include the fabrication of boiler and pressure vessels, steel structures, mining equipment, and railcar construction. It is also widely used for infrastructure repair and rebuilding in accordance with State and Federal Transportation Codes. The electrode's ability to weld alloy and high carbon castings further expands its utility in heavy equipment fabrication and repair sectors.