
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.
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 |
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| 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 |