EDS30775 - Lincoln SuperArc LA-90 .035 ER80S-D2 MIG Wire 44lb Spool

Lincoln SuperArc® LA-90: Precision and Strength in Every Spool

For professional welders demanding consistency and high performance in low alloy steel welding, the Lincoln SuperArc® LA-90 .035" MIG wire is the definitive solution. This wire is formulated to meet the AWS classifications of ER80S-D2 and ER90S-D2, making it a versatile option for projects requiring elevated tensile strength (up to 90 ksi). It is the go-to filler metal for fabricating components that must withstand significant stress and load, thanks to its manganese-molybdenum alloy composition.

Feeding issues can be the bane of productivity on the shop floor. Lincoln Electric addresses this with their Microguard® Ultra technology. This advanced surface treatment ensures that the wire feeds smoothly through the gun liner and contact tip, drastically reducing drag and preventing bird-nesting. The result is a stable, focused arc with minimal spatter, allowing for cleaner welds and less post-weld cleanup. This wire supports a wide range of transfer modes, including short-circuit for thinner gauges and axial spray for heavy-plate penetration, giving you flexibility across different joint configurations.

The 0.50% molybdenum content is not just a spec on a sheet; it provides real-world benefits by retaining strength properties after post-weld heat treatment (stress relief). This makes the LA-90 ideal for piping, heavy machinery, and automotive structural components. The 44 lb spool size ensures you have enough material to keep the arc on for long shifts, maximizing your arc-on time and efficiency.

Key Applications:

• High-strength low-alloy (HSLA) steel fabrication
• Heavy equipment and machinery repair
• Structural steel projects requiring 80-90 ksi tensile strength
• Automotive frames and chassis
• Pressure vessels and piping