Home > Electrodes > AWS Class ER630 Mig & Tig Filler Welding Wire & Rod
Lecong Stainless Manufacturer and Suppliers in Da Nang, Vietnam, offers AWS Class ER630 MIG and TIG filler wire and rod, designed for welding precipitation-hardening stainless steels, particularly 17-4PH. This filler metal provides high strength, toughness, and moderate corrosion resistance. It is heat-treatable, allowing welded structures to achieve mechanical properties comparable to base metals. With consistent feeding, arc stability, and smooth bead appearance, ER630 ensures reliable welding performance. Lecong Stainless supplies ER630 filler wire and rod to industries in Vietnam and worldwide, supporting critical projects in aerospace, petrochemical, power generation, and structural engineering applications.
ER630 typically contains 15–17% chromium, 3–5% nickel, 3–5% copper, and added niobium and columbium, with ≤0.07% carbon. This blend gives it precipitation-hardening ability for increased strength. Mechanical properties (after heat treatment) include tensile strength ranging from 125,000–145,000 psi, yield strength of around 110,000 psi, and elongation of 15–20%. Weld deposits show high strength, moderate corrosion resistance, and excellent toughness. With proper post-weld heat treatment, ER630 ensures welds match the mechanical properties of 17-4PH base material, making it highly reliable for demanding uses.
| 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 |
|
| 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 |
Contact us to get a quick quote for your requirement.
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 widely used in industries that require high strength and toughness in welded structures. Common applications include aerospace components, turbine blades, petrochemical equipment, offshore platforms, and power generation facilities. It is especially suitable for welding precipitation-hardening stainless steels like 17-4PH. The filler metal can be heat-treated to attain the necessary mechanical properties, ensuring reliable welds under extreme conditions. Lecong Stainless supplies ER630 filler wire and rod in Vietnam and internationally, offering solid welding solutions for critical engineering projects that need strength and corrosion resistance.
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