Description
ER309LMo MIG Wire – Stainless Steel Wire for Tough Welding Jobs
The ER309LMo MIG Wire (1.2mm, 15kg) is a high-quality stainless steel filler wire designed for demanding MIG welding applications. This wire is ideal for joining dissimilar steels—such as stainless to mild steel—or cladding applications where added corrosion resistance and toughness are needed.
Versatile Wire for Stainless-to-Carbon Steel Welding
One of the most common uses for this ER309LMo MIG wire is welding stainless steel to carbon steel. It’s also suitable for joining austenitic stainless steels or buffer layers before hardfacing. Thanks to its added molybdenum (Mo) content, it delivers superior crack resistance and higher strength in extreme environments.
Clean Arc with Smooth Feed
Engineered for consistent performance, this wire produces a stable arc and minimal spatter. Whether you’re using it in spray or short-circuit transfer mode, it maintains clean weld beads with excellent wetting characteristics. The precision-wound 15kg spool ensures smooth wire feeding in automated and manual MIG setups.
Corrosion & Heat Resistance
ER309LMo is rich in chromium and nickel, along with molybdenum, which enhances resistance to chemical attack, oxidation, and high-temperature service. It’s a great choice for food-grade equipment, petrochemical fabrication, pressure vessels, and pipelines that face harsh environments.
Compatible with Multiple Stainless Grades
This 1.2mm MIG wire works well with base metals like 304, 304L, 309, and even some duplex steels. It’s ideal for maintenance and repair jobs where steel types may vary, and matching base material exactly is not possible.
Explore our full MIG welding wire range for more stainless and mild steel wire options.
Learn More About Filler Metals
For technical details on selecting stainless steel filler wires, visit this helpful Lincoln Electric guide on stainless filler metals.
Reliable Filler Metal for Demanding Work
Whether you’re fabricating structural components or carrying out plant maintenance, the ER309LMo MIG Wire offers reliability, strength, and performance. Its excellent corrosion resistance and smooth feeding make it a preferred choice for professional welders across industries.