S481951-032 - Hobart Sterling AP E308L-16 Stainless Stick Electrode 5/32 Inch

Technical Overview: Hobart Sterling AP 308/308L

The Hobart Sterling AP 308/308L is a premium quality Shielded Metal Arc Welding (SMAW) electrode designed for joining austenitic stainless steels. Engineered with a rutile-based coating, this electrode meets AWS A5.4 classifications E308-16 and E308L-16. The 'L' designation indicates a low carbon content (maximum 0.04%), which is critical for minimizing carbide precipitation at the grain boundaries during the welding process. This feature preserves the corrosion resistance of the base metal, making it suitable for service environments where intergranular corrosion is a concern.

This 5/32-inch (4.0mm) diameter electrode is formulated to weld 18% Chromium / 8% Nickel steels, including AISI types 301, 302, 304, 305, and 308. The chemical composition ensures a weld deposit that matches the mechanical and corrosion-resistant properties of these base metals. The Sterling AP series is characterized by its 'All Position' (AP) capability, allowing operators to execute high-quality welds in flat, horizontal, vertical, and overhead positions without compromising bead integrity.

Operational characteristics include a smooth, stable arc on both Alternating Current (AC) and Direct Current Electrode Positive (DCEP). The electrode produces a finely rippled bead profile that is flat to slightly convex, reducing the need for extensive grinding. Slag detachability is excellent, often self-releasing upon cooling, which improves productivity in multi-pass applications. This electrode is widely utilized in industries requiring sanitary welds, such as food processing, as well as in chemical and petrochemical fabrication.