242201648 - ESAB Coreshield 15 .035 Flux Core Wire E71T-14 - 10lb Spool

Technical Overview of ESAB Coreshield 15

The ESAB Coreshield 15 is a premium all-position, self-shielded flux-cored welding wire designed specifically for single-pass applications. Classified under AWS E71T-14, this wire is engineered to operate on DCEN (Direct Current Electrode Negative) polarity, making it a staple for thin-gauge fabrication where burn-through is a concern. The 0.035-inch diameter provides excellent control and versatility across various joint configurations, including lap and fillet welds.

One of the defining technical characteristics of Coreshield 15 is its formulation for welding coated steels. It excels in joining galvanized and aluminized mild steels, where standard solid wires often struggle with porosity and arc instability. The flux composition ensures a smooth arc transfer and produces a slag system that covers the weld bead completely, protecting it during cooling and detaching easily post-weld. This reduces the time required for inter-pass cleaning or final finishing.

Packaged in a 4.54kg (10 lb) spool, this product fits standard wire feeders capable of handling 8-inch spools. It is an ideal choice for light structural fabrication, automotive repair, and HVAC ductwork where carrying gas cylinders is impractical or where wind conditions compromise gas shielding. The wire's ability to bridge gaps on poor fit-up joints further enhances its utility in maintenance and repair operations.

Specifications and Performance

Operating without external shielding gas, Coreshield 15 relies on its internal flux core to generate the necessary protective atmosphere. This makes it highly portable and cost-effective. The wire produces a flat to slightly convex bead profile with excellent fusion characteristics. Users can expect low spatter levels compared to other E71T-14 class wires, ensuring a cleaner work environment and reduced nozzle buildup.