Home > Electrodes > AWS Class ER316LSi Mig & Tig Filler Welding Wire & Rod
Midland, UK-based Weston Stainless provides reliable supplies of high-quality stainless steel welding consumables for an extensive variety of industrial uses. Among its higher-end products are AWS Class ER316LSi MIG and TIG filler welding wire and rod, designed for enhanced corrosion resistance and weldability. They are produced using low-carbon austenitic stainless steel and added silicon content, which further improves arc stability and weld bead appearance. Sold in wire and rod shapes, ER316LSi has very good pitting and crevice corrosion resistance and is well suited to weld 316 and 316L stainless steel parts in challenging environments.
AWS Class ER316LSi TIG and MIG filler rod and wire have about 18% chromium, 12% nickel, and 2-3% molybdenum with less than 0.03% carbon to limit carbide precipitation. Having higher silicon levels (0.65-1.00%) enhances wetting properties and fluidity. These fillers have a tensile strength of about 600 MPa, yield strength of about 300 MPa, and elongation of 35%. Their physical properties are density 7.98 g/cm³ and melting range 1370-1400°C, making them deliver great mechanical performance and corrosion resistance under extreme conditions.
| Classification | AWS A5.9, ER316LSi |
| Form | MIG spools, TIG cut lengths, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Current | MIG-DCEP / TIG-DCEN |
| Diameters | .023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8” |
| Standard TIG straight lengths are available | 36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request. |
| AWS ER316LSi MIG & TIG Filler Metal Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S |
| 0.03 | 18.0-20.0 | 11.0-14.0 | 2.0-3.0 | 1.0-2.5 | 0.65-1.0 | 0.03 | 0.03 |
| Yield, kpsi: | 64 |
| Tensile Strength, kpsi: | 90 |
| Elongation%, min: | 37 |
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Designed for MIG welding applications with excellent corrosion resistance, especially in environments with chlorides and chemicals. It typically comes in sizes ranging from 0.030 inches (0.8 mm) to 0.045 inches (1.2 mm) in diameter. The wire provides good weld bead appearance and reduces spatter.
Enhanced corrosion resistance, particularly in harsh environments. It is available in sizes from 1/16 inch (1.6 mm) to 3/32 inch (2.4 mm) in diameter. The wire ensures high-quality, clean welds with minimal oxidation.
Used for TIG welding stainless steel, providing superior resistance to pitting and crevice corrosion. Commonly available in lengths of 36 inches (914 mm) and diameters from 1/16 inch (1.6 mm) to 3/32 inch (2.4 mm). It delivers excellent weld strength and smooth, clean welds.
AWS Class ER316LSi MIG and TIG filler wire and rod find extensive use in industries including marine, food processing, pharmaceutical, and chemical processing. They are best suited for welding stainless steel piping, tanks, heat exchangers, and structural parts exposed to harsh environments. Their enhanced silicon content provides better arc stability and wetting, leading to smooth, high-quality welds with low spatter. These fillers exhibit superior corrosion and oxidation resistance, making them ideal for applications demanding strong and long–lasting welds in harsh conditions.
AWS Class ER316LSi MIG and TIG filler wire and rod are supplied with test certificates to confirm conformity to AWS A5.9 and ISO 14343 standards, guaranteeing precise chemical composition and mechanical properties. Supplied in spools for MIG welding and cut-length rods for TIG welding, they are packaged in moisture-resistant materials to preserve quality. Delivery can be in bulk or customized packaging, guaranteeing safe transport and timely supply for industrial welding purposes.
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