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AWS Class ER330 MIG and TIG filler welding wire and rod is a high-alloy austenitic stainless-steel consumable crafted for welding alloys with similar properties that function in extremely high-temperature settings. Thanks to its rich nickel and chromium content, ER330 boasts outstanding oxidation resistance and keeps its mechanical stability even when exposed to prolonged heat. It excels in resisting carburization and thermal fatigue, making it ideal for applications that involve continuous temperature fluctuations. ER330 provides smooth arc characteristics, a pleasing weld bead appearance, and dependable performance in both MIG and TIG processes, ensuring robust and stable welds for demanding industrial tasks.
| Classification | AWS A5.9, ER330 |
| 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 ER330 MIG & TIG Filler Metal Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.18-0.25 | 15.0-17.0 | 34.0-37.0 | 0.75 | 1.0-2.5 | 0.30-0.65 | 0.03 | 0.03 | 0.75 |
| Yield, kpsi: | 56 |
| Tensile Strength, kpsi: | 84 |
| Elongation%, min: | 29 |
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Stainless Steel ER330 MIG Filler Wire is available in various diameters such as 0.035″, 0.045″, and 1/16″. It is highly resistant to oxidation and carburization in high-temperature environments. This wire is suitable for welding alloys of similar composition and dissimilar metals.
Stainless Steel ER330 TIG Filler Wire comes in sizes like 1/16″, 3/32″, and 1/8″. It provides excellent resistance to scaling and oxidation up to 2200°F (1204°C). Ideal for applications involving severe thermal cycling and thermal shock resistance.
Stainless Steel ER330 TIG Filler Rod is available in diameters of 1/16″, 3/32″, and 1/8″. This rod offers superior corrosion resistance in high-temperature applications. It is used for welding similar alloys and for cladding carbon and low-alloy steels.
Each AWS Class ER330 MIG and TIG Filler Welding Wire and Rod is carefully packed using high-quality materials to prevent rust and damage during shipping. We focus on clients satisfaction. Through on time and reliable shipping, delivering products on time. All relevant product documentation is provided to clients at the time of delivery assuring a seamless experience.
ER330 is frequently utilized in heat-resistant fabrication projects, such as furnace components, burners, heat-treating baskets, retorts, petrochemical processing equipment, and high-temperature conveying systems. Its remarkable ability to endure severe thermal shock and oxidation makes it perfect for welding steels used in industrial heating, reformer tubes, exhaust systems, and other parts exposed to temperatures over 1000°C. The alloy’s strong mechanical retention under heat guarantees long-lasting durability in tough service conditions. These attributes make AWS Class ER330 a go-to filler metal for manufacturing and repairing equipment that needs to withstand extreme thermal and chemical challenges.







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