ED511213 - Lincoln Fleetweld 37+ E6013 Mild Steel Welding Rod 2.5mm

Technical Overview: Lincoln Fleetweld 37+ E6013

The Lincoln Electric Fleetweld 37+ is a premium quality E6013 stick electrode designed for the Shielded Metal Arc Welding (SMAW) process. Engineered for high-speed welding on mild steel, this electrode features a high-titania (rutile) coating that facilitates a smooth, stable arc and exceptional bead aesthetics. The 2.5mm diameter variant is particularly optimized for thin gauge materials and applications requiring precise heat input control. It meets AWS A5.1 specifications for E6013 classification, delivering reliable mechanical properties with a tensile strength exceeding 60,000 psi.

One of the defining technical characteristics of the Fleetweld 37+ is its versatility regarding power sources. It operates efficiently on AC, DCEN (Straight Polarity), and DCEP (Reverse Polarity), making it compatible with a wide range of welding machines, including those with low Open Circuit Voltage (OCV). The electrode is formulated to provide excellent slag detachability; in many flat and horizontal fillet welds, the slag is self-peeling, significantly reducing post-weld cleaning time and labor costs. This characteristic is crucial for high-production environments where cycle time is a key performance indicator.

The electrode excels in all welding positions, including vertical down, which allows for faster travel speeds on sheet metal fabrication. Its ability to bridge irregular gaps and handle poor fit-up makes it an indispensable consumable for maintenance, repair, and operations (MRO) inventories. The Fleetweld 37+ produces a flat to slightly convex bead profile with fine ripples, ensuring that the finished weld is not only structurally sound but also visually appealing, often requiring minimal grinding or finishing.

Industrial Suitability

This electrode is specifically suited for general fabrication shops, light structural work, and automotive repair where mild steel is the primary substrate. Its forgiving arc characteristics allow for consistent quality even when surface preparation is less than optimal, although standard cleaning practices are recommended for best results. The 2.5mm size provides the necessary current density to penetrate effectively without burning through thinner sections.