Home > Electrodes > AWS Class ER630 Mig & Tig Filler Welding Wire & Rod
AWS Class ER630 MIG and TIG filler welding wire and rods are top-notch consumables crafted specifically for welding duplex stainless steels, especially those that require high corrosion resistance and impressive mechanical strength. These welding materials are designed to deliver robust, consistent welds with minimal porosity, ensuring they perform reliably in critical applications. Offered in a range of diameters and lengths, ER630 filler wires and rods are perfect for both MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding processes, making them versatile for precision welding and heavy-duty fabrication tasks.
The makeup of AWS Class ER630 filler welding wire and rod usually features elevated levels of chromium and nickel, along with some molybdenum, nitrogen, and occasionally manganese. Chromium boosts corrosion and oxidation resistance, while nickel enhances toughness and ductility. Molybdenum is key for providing excellent resistance to pitting and crevice corrosion, especially in environments rich in chlorides. Nitrogen adds extra strength to the weld and helps prevent stress corrosion cracking. These characteristics make ER630 a fantastic option for welding duplex stainless steels that need to maintain both structural integrity and resistance to corrosion.
| Classification | AWS A5.9, ER630 |
| 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 ER630 MIG & TIG Filler Metal Application & uses |
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| C | Cr | Ni | Mo | Mn | Si | P | S | Cu | Element | Amount |
| 0.05 | 16.00-16.75 | 4.5-5.0 | 0.75 | 0.25-0.75 | 0.75 | 0.03 | 0.03 | 3.25-4.00 | Nb | 0.15-0.30 |
| Yield, kpsi: | 135 |
| Tensile Strength, kpsi: | 150 |
| Elongation%, min: | 10 |
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ER630 MIG filler wire provides high strength and excellent corrosion resistance, ideal for welding precipitation-hardening stainless steels in aerospace and industrial applications requiring durable, high-performance joints.
ER630 TIG filler wire offers superior strength and corrosion resistance, suitable for welding high-strength, precipitation-hardening stainless steels, ensuring robust welds for aerospace, petrochemical, and high-stress applications.
ER630 TIG filler rod delivers high strength and excellent corrosion resistance, perfect for welding precipitation-hardening stainless steels in critical applications like turbine blades and aerospace components, ensuring durability and performance.
Each AWS Class ER630 MIG and TIG Filler Welding Wire and Rod is carefully packed using high-quality materials. To prevent any damage or corrosion during shipping. We focus on customers satisfaction by assuring prompt delivery. Through efficient transportation methods. Our commitment to excellence extends to providing all necessary documentation at the time of delivery, ensuring transparency and seamless communication with our clients. This process guarantees that our products reach you in optimal condition and on time.
AWS Class ER630 MIG and TIG filler wire and rod are extensively utilized in industries that demand strong, corrosion-resistant, and durable welded joints. They’re commonly found in sectors like chemical processing, petrochemical, oil and gas, marine, and water treatment. These filler materials are essential for fabricating pipelines, pressure vessels, tanks, and structural components that must endure tough conditions. With their excellent weldability, mechanical strength, and corrosion resistance, AWS Class ER630 filler welding wire and rods guarantee high-quality, dependable welds for critical industrial applications.







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