ED561114 - Lincoln SuperArc L-56 ER70S-6 MIG Wire .045 12.5lb Spool

Premium Mild Steel MIG Wire for Industrial Fabrication

The Lincoln Electric SuperArc L-56 is a premium copper-coated mild steel solid wire designed for the Gas Metal Arc Welding (GMAW) process. As an ER70S-6 classification wire, it is engineered with elevated levels of manganese and silicon. These chemical additions act as powerful deoxidizers, making the L-56 exceptionally capable of handling base metals with medium to heavy mill scale, rust, or oil. For industrial fabricators and maintenance professionals, this means less time spent on pre-weld cleaning and more time welding, without sacrificing the integrity of the joint.

One of the standout features of the SuperArc L-56 is its superior feedability. Lincoln Electric utilizes proprietary manufacturing processes to ensure that the wire diameter, cast, and helix are tightly controlled. This precision prevents tangling and bird-nesting in the feeder, ensuring a smooth, uninterrupted wire feed even through long gun liners. The high-quality copper coating further enhances performance by improving electrical conductivity at the contact tip, reducing arc instability and extending the lifespan of your consumables. This 12.5 lb spool is perfectly sized for portable wire feeders and smaller shop machines, offering a balance between portability and run-time.

In terms of weld characteristics, the L-56 delivers excellent toe-wetting action. This results in a flat, smooth bead profile that blends seamlessly into the base metal, reducing the risk of cold lap and minimizing post-weld grinding. It is a versatile consumable that supports a wide range of metal transfer modes, including short-circuiting, globular, axial spray, and pulsed spray transfer. Whether you are working on automotive components, structural steel, or general repairs, the Lincoln SuperArc L-56 provides the consistency and quality required for code-quality welds.

Key Technical Benefits

• High Deoxidizers: The S6 formulation handles surface contaminants better than S3 wires, reducing porosity on dirty steel.
• Consistent Feeding: Precision winding and manufacturing tolerances ensure smooth feeding and reduced downtime.
• Versatile Shielding Gas: Compatible with both 100% CO2 for deep penetration and Argon/CO2 blends for reduced spatter and better bead appearance.
• Optimal Bead Profile: Fluid puddle control allows for excellent wash-in at the weld toes.