Home > Electrodes > AWS Class ER312 MIG & TIG Filler Welding Wire & Rod
Walid Stainless, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of top-notch welding consumables, including specialized filler metals for both MIG and TIG welding. One of their standout products is the **AWS Class ER312 MIG and TIG filler welding wire and rod**, specifically crafted for welding austenitic stainless steels and joining dissimilar metal joints that demand high strength, oxidation resistance, and crack-resistant welds. This filler wire offers smooth arc characteristics, stable metal transfer, and consistent weld bead quality, making it a great choice for both manual and automated welding tasks. Walid Stainless is committed to strict quality control and adheres to international standards, catering to industries like chemical processing, power generation, petrochemical, construction, and shipbuilding, where reliability and performance are crucial.
The AWS Class ER312 MIG and TIG fillers are high-alloy austenitic stainless steel consumables, primarily made up of iron, chromium (25–27%), and nickel (12–15%), along with carefully controlled amounts of manganese and silicon. This high alloy content provides excellent resistance to oxidation and scaling at elevated temperatures, as well as strong corrosion resistance in harsh environments. Mechanically, the weld metal produced with ER312 filler typically boasts a tensile strength of around 75 ksi (515 MPa) and good elongation, ensuring toughness and ductility for demanding applications.
| Classification | AWS A5.9, ER312 |
| 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 ER312 MIG & TIG Filler Metal Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.15 | 28.0-30.0 | 20.0-22.0 | 0.75 | 1.0-2.5 | 0.30-0.65 | 0.03 | 0.03 | 0.75 |
| Yield, kpsi: | 78 |
| Tensile Strength, kpsi: | 109 |
| Elongation%, min: | 45 |
Contact us to get a quick quote for your requirement.
ER312 MIG filler wire excels in welding dissimilar metals and high-strength steels, offering robust strength and corrosion resistance, ideal for heavy machinery, construction, and shipbuilding applications.
ER312 TIG filler wire provides high strength and wear resistance for welding dissimilar metals. It ensures strong, durable welds with excellent corrosion resistance, suitable for aerospace and industrial repairs.
ER312 TIG filler rod is designed for high-strength welds on dissimilar metals, offering superior durability and corrosion resistance. Ideal for demanding applications in heavy machinery and construction.
After manufacturing, our quality control team conducts comprehensive destructive and non-destructive testing using advanced tools to ensure the reliability of AWS Class ER312 MIG and TIG Filler Welding Wire and Rod. Then securely we package the products and guarantee timely delivery to customers, providing all necessary documentation along with the shipment for a seamless experience.
AWS Class ER312 MIG and TIG filler wires and rods are commonly used for welding transitions between dissimilar metals—like stainless steel to carbon or low-alloy steels—as well as for joining stainless steels that need enhanced high-temperature performance. Typical applications include furnace parts, heat exchangers, boiler components, pressure vessels, and piping systems. Their exceptional high-temperature strength, corrosion resistance, and dependable weld performance make them perfect for fabrication, maintenance, and repair work in tough industrial settings.
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