Home > Electrodes > AWS Class ER312 MIG & TIG Filler Welding Wire & Rod
Aditya Stainless, located in Kolkata, India, has built a solid reputation as a manufacturer and supplier of top-notch AWS Class ER312 MIG and TIG filler welding wire and rod. These filler materials are expertly crafted for welding dissimilar metals and tough steels, providing outstanding crack resistance and impressive tensile strength. The ER312 wires and rods from Aditya Stainless are made with careful alloying and stringent quality controls, ensuring consistent arc performance, smooth feeding, and clean weld profiles. They’re widely utilized in sectors like construction, mining, petrochemicals, and power generation, offering reliable filler solutions for both fabrication and maintenance tasks throughout India and beyond.
Aditya Stainless’s AWS Class ER312 filler wire and rod are high-alloy materials that contain around 29% chromium and 9% nickel, engineered to provide exceptional mechanical properties and crack-resistant welds. The typical weld deposit features a two-phase microstructure (austenite and ferrite), which grants it remarkable tensile strength—typically about 860 MPa (125,000 psi)—along with good ductility. The chemical makeup also gives it resistance to heat, corrosion, and thermal fatigue. These characteristics make ER312 filler materials perfect for welding unknown steels, high-alloy steels, or highly stressed joints, ensuring durability and metallurgical stability even in extreme conditions.
| 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 |
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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 from Aditya Stainless are perfect for welding dissimilar steels, tool steels, manganese steels, and challenging alloys. They’re often used to join stainless steel to carbon steel or in situations where post-weld heat treatment isn’t an option. Common applications include repairing shafts, rollers, dies, and components in power plants, cement industries, foundries, and heavy equipment manufacturing. Their excellent resistance to cracking and thermal shock makes them a go-to choice for demanding welding tasks.
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