
The Hobart 718MC is a premium 5/32-inch stick electrode designed for critical welding applications requiring AWS E7018-1 H4 R classification. Engineered with a specialized coating, this electrode offers superior moisture resistance, significantly reducing the risk of hydrogen-induced cracking in the weld zone. The "MC" designation highlights its Moisture Control capabilities, making it an excellent choice for environments with high humidity or where strict low-hydrogen compliance is mandatory. This 10lb pack is ideal for smaller jobs or portable welding operations where maintaining fresh consumable stock is essential.
Technically, the Hobart 718MC excels in providing high deposition rates and deep penetration. It is formulated to deliver X-ray quality welds with exceptional mechanical properties, specifically targeting low-temperature impact toughness. The electrode meets the Charpy V-Notch requirements at -50°F (-45°C), making it suitable for harsh environments found in offshore drilling, shipbuilding, and arctic construction. The iron powder addition in the coating enhances current carrying capacity and deposition efficiency, allowing for faster travel speeds without compromising bead integrity.
This electrode operates effectively on both DCEP (Direct Current Electrode Positive) and AC (Alternating Current), providing flexibility across various power sources. Its all-position capability ensures that vertical and overhead welds maintain the same high quality as flat welds. The Hobart 718MC is particularly well-suited for welding low alloy structural steels, free-machining steels, and medium to high carbon steels where cracking resistance is paramount. By minimizing moisture pickup, this electrode reduces the frequency of rod oven re-baking cycles, optimizing workflow efficiency in industrial settings.
Industries such as petrochemical, power generation, and heavy equipment manufacturing rely on the consistency of the Hobart 718MC. Whether used for single-pass or multiple-pass welds, it delivers a stable arc and consistent bead profile that meets rigorous code requirements. The 10lb packaging offers a convenient quantity for maintenance and repair operations (MRO) or specific project phases where bulk drums are unnecessary.
| Additional Information |
|---|
| Packaging Description:10lb pack |
| AWS Spec :E7018-1 |
| Diameter:4.0mm |
| Polarity:DC+ / AC |
| Position:ALL |
| Amp Range:135-220amp |
| AWS Classification:E7018-1 H4 R |
| Rod Type:Stick Electrode |
| Coating Type:Iron Powder Low Hydrogen |
| Tensile Strength:70,000 psi (min) |
| ----- new values below ---- |
| AWS Classification:E7018-1 H4 R |
| Diameter (Inch):5/32" |
| Rod Type:Stick Electrode |
| Coating Type:Iron Powder Low Hydrogen |
| Tensile Strength:70,000 psi (min) |
| Yield Strength:58,000 psi (min) |
| Charpy V-Notch:20 ft•lbf @ -50°F |
| Brand:Hobart |
| AWS Spec:E7018-1 |
| Diameter:4.0mm |
| Packaging Description:10lb pack |
| Polarity:DC+ / AC |
| Position:ALL |
| Amp Range:135-220amp |