EDS30778 - Lincoln SuperArc LA-100 ER100S-G .035 MIG Wire 44lb Spool

Premium Low Alloy MIG Wire for High-Strength Applications

The Lincoln Electric SuperArc® LA-100 is a premium-grade, copper-coated solid wire electrode designed specifically for the Gas Metal Arc Welding (GMAW) of low alloy steels. Engineered to meet the rigorous demands of industries requiring high tensile strength, this wire is classified under AWS A5.28 as ER100S-G and ER110S-G. It is formulated to produce welds with a minimum tensile strength of 100,000 psi (690 MPa) and a yield strength of 82,000 psi (565 MPa), making it an essential consumable for structural fabrication where material integrity is paramount. The "G" classification indicates that this electrode meets specific chemical and mechanical property requirements agreed upon for specialized applications, distinguishing it from standard mild steel wires.

One of the defining characteristics of the SuperArc® LA-100 is its high-quality copper coating. This manufacturing feature significantly enhances electrical conductivity, resulting in superior arc-starting characteristics and a stable arc throughout the welding process. Furthermore, the coating acts as a lubricant, reducing friction within the liner and contact tip, which prolongs consumable life and ensures consistent wire feeding. This is particularly critical in automated or semi-automatic environments where feed interruptions can lead to costly downtime and weld defects. The precise control of cast and helix during the winding process ensures the wire feeds straight and targets the joint accurately every time.

This wire is versatile in its operational capabilities, supporting a wide range of metal transfer modes including short-circuiting, globular, axial spray, and pulsed spray transfer. This flexibility allows welding engineers and operators to tailor the process to the specific joint configuration and position. The LA-100 is specifically recommended for welding quenched and tempered steels as well as HY-80 base materials, often found in naval shipbuilding, heavy equipment manufacturing, and critical structural components. Its formulation ensures that the weld metal matches the mechanical properties of these high-performance base materials, preventing failure points in the heat-affected zone or the weld bead itself.

Packaged in a substantial 44 lb spool, this product ensures long run times between changeovers, optimizing productivity in high-volume fabrication shops. The .035-inch diameter offers a balance between deposition rate and puddle control, suitable for both thin gauge high-strength sheets and multi-pass heavy plate welding. By choosing Lincoln Electric's SuperArc® LA-100, facilities invest in a consumable that balances mechanical robustness with excellent weldability and operational efficiency.