HARRIS Product MIG Welding Wire

Harris Products MIG Welding Wire: Precision Filler Metals for Every Application

When it comes to MIG welding wire, few names carry the weight of experience that Harris Products Group does. Since 1905, the Harris name has been identified with innovative people, practices, and products as an industry leader in gas distribution solutions, consumables, and equipment used in a variety of industries. That century-plus of metallurgical expertise flows directly into their MIG welding wire lineup, making Harris a go-to choice for fabricators, maintenance welders, and hobbyists alike.

A Legacy Built on Filler Metal Excellence

Harris Products Group was formed through the merger of Harris Calorific, Inc., a manufacturer of gas welding and cutting equipment, and the J.W. Harris Co., a manufacturer of brazing and soldering alloys and welding consumables. They have developed proprietary manufacturing technology to ensure the highest standards of quality and traceability. Each of their manufacturing facilities is ISO 9001 certified for quality management systems. For welders who demand consistent chemistry and reliable feed performance, that commitment to traceable quality means every spool delivers predictable results.

A Broad Spectrum of MIG Wire Alloys

Harris MIG welding wire is the professional's choice in steel, stainless steel, aluminum, and silicon bronze welding wire. Whether you're building structural mild steel components, tackling a stainless food-service fabrication, or working with aluminum marine or automotive parts, Harris offers an appropriate alloy for the job.

• ER70S-6 Mild Steel MIG Wire: It contains more deoxidizers than ER70S-3, providing better wetting, a flatter bead shape, and faster travel speeds, and is compatible with 100% CO₂, 75/25 shielding gas, and higher argon blends such as 90/10. ER70S-6 mild steel wire is for general-purpose mild steel applications with tensile strength exceeding 70K psi, and its high levels of silicon and manganese deoxidizers are best suited for welding on base metals with medium to high mill scale.
• Stainless Steel MIG Wire (308LSi, 316LSi, 309L, and more): Harris's stainless portfolio includes 308, 308L, 308LSi, 309, 309L, 309LSi, 310, 312, 316, 316L, 316LSi, 317L, 347, 410, and 630 wire options. The 0.65–1.00% silicon content in their LSi variants improves wash and wetting action in gas-shielded MIG welding processes, while the low 0.03% maximum carbon increases resistance to intergranular corrosion.
• Aluminum MIG Wire (ER4043 & ER5356): Harris ER5356 Aluminum MIG welding wire is an all-position, non-heat-treatable MIG wire used to weld the 5XXX series alloys. Harris ER4043 Aluminum MIG welding wire is qualified to AWS A5.10 ER4043 and is most often used to weld the 6XXX series of alloys.
• Silicon Bronze MIG Wire: Harris silicon bronze MIG welding wire is a copper-silicon alloy used to weld similar copper alloy base metals, including brass, and to weld these alloys to steel — and it is also frequently used in GMAW "brass welding" of coated sheet steels.

Why Choose Harris for MIG Welding Wire?

Harris Products Group is a wholly-owned subsidiary of Lincoln Electric Holdings, Inc., the world leader in the design, development, and manufacture of arc welding products. That parent-company backing translates into access to world-class R&D resources, while Harris itself maintains a focused identity built on filler metal performance. Harris offers a full array of welding filler metals in both wire and rod including mild steel, stainless, aluminum, and cast iron — a comprehensive range that means welders can standardize on a single trusted brand across multiple projects and material types.

Whether you're a seasoned professional running production welds or a weekend fabricator tackling restoration work, explore the full selection of MIG welding wire on offer from Harris Products Group and put over a century of filler metal expertise to work on your next project.