S483951-032 - Hobart Sterling AP 309/309L Stainless Stick Electrode 5/32"

Industrial Grade 309L Stainless Electrode

The Hobart Sterling AP 309/309L is a premium quality Shielded Metal Arc Welding (SMAW) electrode designed for the rigorous demands of industrial fabrication and maintenance. Engineered with a rutile coating, this electrode meets AWS E309L-16 specifications, providing a versatile solution for joining carbon steels to stainless steels. The 'L' designation indicates a low carbon content (0.04% max), which is critical for preventing intergranular corrosion and carbide precipitation during high-temperature service or multi-pass welding applications.

This 5/32" (4.0mm) diameter electrode is optimized for deposition rates suitable for medium-to-heavy plate thicknesses. It operates effectively on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), offering flexibility across various power sources. The chemical composition includes high chromium and nickel levels, ensuring a weld deposit with excellent corrosion resistance and ductility. It is particularly effective for buffer layers in cladding operations before depositing 308L filler metal.

In MRO environments, the Sterling AP 309L is indispensable for repairing unknown grades of stainless steel or attaching stainless brackets and fittings to mild steel structures. Its all-position capability allows operators to perform vertical and overhead welds without changing consumables, streamlining workflow in complex plant environments such as petrochemical facilities, pulp and paper mills, and food processing plants.