قضيب لحام (Esab) موديل (7018)

Key features include excellent arc stability, strong construction for structural work, good weldability on low-alloy and high-strength steels, and resistance to moisture-related hydrogen issues when properly dried and stored.

It’s ideal for structural steel applications, repairing or fabricating steel frames and components from low-alloy steels to high-strength steels. Use it for typical structural thicknesses found in steel structures and fabrications.

E7018 is a low-hydrogen iron powder electrode known for ductile welds and good toughness. The 2.5mm diameter makes it suitable for thinner sections and general structural welding, with the option to weld in all positions when used correctly.

Prepare the base metal (clean, free of oil and rust), set appropriate welding current for 2.5mm rods, maintain a proper arc length, and use a steady travel speed. For thicker/high-strength steels, preheating and post-weld heat treatment may be required according to the material spec. Keep the electrode dry to avoid hydrogen-induced defects.

Store in a dry, sealed container or welding rod oven. Low-hydrogen rods can absorb moisture if left exposed, which degrades weld integrity. If moisture is suspected, re-dry the rods per the manufacturer’s guidance before use.

Always wear appropriate PPE (welding helmet, gloves, jacket), ensure proper ventilation, and follow standard welding safety practices. Handle the electrode carefully to minimize moisture uptake and follow any site-specific safety regulations and standards.

Smaller diameters like 2.0mm are well-suited for thinner sheets and precise beads, while larger diameters like 3.2mm are preferred for heavier sections and higher deposition rates. For reference, similar ESAB 7018 rods available on Fepy include ESAB 7018 2.0mm at https://fepy.com/product/esab-7018-welding-rod-2-0mm and ESAB 7018 3.2mm at https://fepy.com/product/esab-7018-welding-rod-3-2mm.

Ideal for welding steel structures, frames, and components where high strength and ductility are required. It’s commonly used in construction, fabrication, and repair work involving low-alloy and high-strength steels.

Look for a smooth, uniform bead with good fusion to the base metal, minimal porosity, and a uniform cross-section. The weld should be free of cracks and excessive spatter, and the deposited metal should have a uniform, ductile appearance.

Yes. Clean the base metal (remove oil, rust, and coatings), dry the electrodes properly, and consider preheating for thicker or high-strength steels as recommended by your material specification. Post-weld heat treatment may be required for certain high-strength applications.