Description
The ER309L 2.4mm Sub Arc Wire 25kg offers reliable performance for industrial-grade stainless steel welding. Welders often choose this wire when working with dissimilar metals, especially stainless steel to carbon or low alloy steels. It performs exceptionally well in submerged arc welding (SAW) processes where high strength and corrosion resistance are crucial.
This wire features low carbon content, which helps reduce carbide precipitation. That means better resistance to intergranular corrosion—critical for jobs in chemical processing, pulp and paper industries, and pressure vessels. Thanks to its balanced chemistry and high ferrite content, the ER309L wire delivers excellent crack resistance, even in high-stress welding applications.
The 2.4mm diameter provides a stable arc and ensures good penetration on thick sections. You’ll benefit from smooth weld beads with minimal spatter, reducing clean-up time and improving weld aesthetics. The 25kg spool is ideal for workshops and production lines needing long continuous weld runs. You’ll spend less time changing spools and more time working.
This wire performs well across a variety of base metals and maintains consistency across welds. Whether you’re building pipelines, boilers, tanks, or general stainless steel structures, this wire stands up to tough environments. It’s an excellent addition to any professional welder’s inventory.
Shop now at Fourie Welding & Tool and explore our full range of welding consumables tailored to South Africa’s welding professionals.
Want more technical guidance? Visit The Welding Institute for expert resources on stainless steel filler metal selection.
