S480444-032 - Hobart Sterling AP 310 Stainless Stick Electrode 1/8 E310-16

High-Temperature Stainless Steel Electrode

The Hobart Sterling AP 310 is a premium quality Shielded Metal Arc Welding (SMAW) electrode designed for the joining and surfacing of heat-resistant austenitic stainless steels. Classified as AWS E310-16, this electrode is formulated with a heavy rutile coating that facilitates a smooth, stable arc and easy slag detachment. The core wire and coating composition deposit a weld metal consisting of approximately 25% Chromium and 20% Nickel. This specific metallurgy is engineered to provide outstanding resistance to oxidation and scaling at elevated temperatures ranging up to 2100°F (1150°C).

This electrode is particularly effective for welding base metals of similar composition, such as AISI 310 and 310S, often found in industrial heating and chemical processing equipment. Additionally, the fully austenitic structure of the weld deposit makes it an excellent choice for welding dissimilar metals, specifically when joining carbon steels or low-alloy steels to stainless steels, or for welding air-hardening steels where a ductile transition layer is required to prevent cracking. The 'AP' designation signifies its All-Position capability, ensuring consistent performance in flat, horizontal, vertical, and overhead positions.

Technically, the deposit retains its mechanical integrity and corrosion resistance in non-sulphurous atmospheres at high temperatures. It is widely specified for MRO (Maintenance, Repair, and Operations) in sectors requiring robust thermal cycling durability. The electrode operates efficiently on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing flexibility for various power source configurations found in field environments.