ER 309, ER 309L, ER 309LSi Stainless Steel TIG Wire

What are the main features and properties of ER 309, ER 309L, and ER 309LSi TIG wire?

ER, 309, ER 309L, and ER 309LSi TIG Wires exhibit distinct key characteristics and properties that make them suitable for various welding applications. Known for its excellent thermal resistance; it is also suitable for welding heat resistant austenitic stainless steels as well as dissimilar metal joints. Good strength plus toughness produces reliable skills even under extreme conditions. With reduced amounts of carbon within, this material has exceptional resistance towards intergranular corrosion; therefore, it is best suited for joining stainless-steel grades with lesser quantities of carbon like Grade 309 without affecting their anti-corrosive nature in any way.

It is easy to operate and weld with ER 309L. Addition of silicon makes a welding wire, ER 309LSi TIG wire, that exhibits improved arc stability and better fluidity of the weld pool leading to precise and smoother weld beads. This aspect is useful especially when welding on thin materials or making detailed welds. The welding process does not release any spatters because the wire, ER309LSi, has been refined to prevent such things from happening during welding, which helps keep a clean environment in the workplace. These TIG wires meet the requirements for corrosion resistance as well as mechanical strength and are easily welded; thus they have become an important tool for industries that require high-performance stainless steel fabrication solutions.