Home > Electrodes > AWS Class ER308/308H Mig & Tig Filler Welding Wire & Rod
Here’s a comprehensive look at the **[ER308/308H MIG & TIG Filler Welding Wire and Rod]()** (AWS Class ER308 / ER308H) that you can include in your catalog or specification sheet:
The ER308/308H filler metal is crafted according to the American Welding Society (AWS) specification A5.9 (and ASME SFA 5.9). It’s specifically designed for MIG (GMAW) and TIG (GTAW) welding of austenitic stainless steels, especially those in the 18% Cr‑9% Ni family, like types 304, 304H, 308, and 308H. The “H” variant (ER308H) has a slightly higher carbon content (usually between 0.04‑0.08%) which boosts its tensile strength and creep resistance, making it ideal for high-temperature applications. This filler is perfect for general fabrication and environments where corrosion resistance and dependable weld quality are a must.
| Classification | AWS A5.9, ER308/308H |
| 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 ER308/308H MIG & TIG Filler Metal Application & uses |
|
| c | 0.05 |
| si | 0.46 |
| Mn | 1.65 |
| Cr | 20.45 |
| Ni | 9.85 |
| Other | – |
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Excellent corrosion resistance and high-temperature strength for welding 304 and 308 stainless steels, ideal for chemical processing and food industry applications.
High corrosion and oxidation resistance. They are available in sizes such as 1/8″ and 5/32″, providing ease of use and flexibility in various welding applications.
Superior corrosion resistance and durability, making them ideal for heavy-duty applications. With diameters ranging from 3/16″ to 1/4″, they are designed for robust welding tasks, ensuring strong joints and long-lasting performance in harsh environments.
AWS Class ER308/308H MIG and TIG filler wire and rod are extensively used in petrochemical, power generation, food processing, and marine industries. They are suitable for welding 304 and 304H stainless steel pressure vessels, boilers, storage tanks, and heat exchangers. Their high-temperature strength and corrosion resistance improve their suitability for use in steam exposure, harsh heat, and aggressive chemical environments. With superior weldability and mechanical properties, these fillers provide strong, resistant welds in demanding industrial uses that need long-term performance.
ER308/308H filler metals are ideal for welding austenitic stainless steels of similar composition (like 304H, 308, 301, 302, 305) and are particularly useful in applications that require strength at elevated temperatures, especially the 308H variant. Common uses include fabrication in chemical and petrochemical plants, food and beverage processing equipment, the pulp and paper industry, general stainless steel structure fabrication, and any welded assemblies where corrosion resistance and good ductility are crucial. The higher carbon “H” version is particularly well-suited for heat-resistant applications where creep strength is necessary.
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