S295129-S20 - Hobart SDX S2Si-EM12K Submerged Arc Wire, 3/32, 55lb Coil

Hobart SDX S2Si-EM12K: Precision Submerged Arc Wire

The Hobart SDX S2Si-EM12K is a high-performance, copper-coated carbon steel solid wire engineered specifically for the submerged arc welding (SAW) process. Designed as a versatile, general-purpose solution, this wire meets the AWS EM12K classification, making it a staple for industrial fabrication shops dealing with non-alloyed and fine-grain steels. The 3/32-inch diameter and 55lb coil packaging are optimized for continuous, heavy-duty welding operations where efficiency and weld integrity are paramount.

One of the defining characteristics of the SDX S2Si-EM12K is its adaptability. It is suitable for both single-pass and multiple-pass welding applications, providing flexibility across a range of project types. Whether used for joining structural components or fabricating pressure vessels, this wire delivers consistent bead profiles and reliable mechanical properties. The copper coating not only protects the wire from oxidation during storage but also enhances electrical contact within the contact tip, ensuring a stable arc and smooth wire feeding—critical factors in automated submerged arc systems.

This wire is formulated to work effectively with a wide variety of fluxes, allowing welding engineers to tailor the process to specific joint requirements and base materials. It excels in industries requiring deep penetration and high deposition rates, such as wind tower manufacturing, ship panel fabrication, and pipe double jointing. By choosing Hobart SDX S2Si-EM12K, operators gain a reliable consumable that supports high productivity while maintaining stringent quality standards in demanding industrial environments.