Conrad Welding Supplies, located in Houston, USA, is a trusted name when it comes to manufacturing and supplying AWS Class ER330 MIG and TIG Filler Welding Wire. This wire is specifically crafted for welding stainless steels that can withstand high temperatures, heat, and oxidation. It’s perfect for joining 330-grade stainless steel and other heat-resistant alloys that are commonly found in industrial furnaces, heat treating equipment, and petrochemical systems. With its smooth arc transfer, reliable performance, and resistance to thermal distortion, Conrad’s ER330 wire is a favorite for both fabrication and maintenance in tough environments that demand long-lasting durability.
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| 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 |
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The ER330 filler wire is made up of about 35–37% nickel and 17–20% chromium, along with balanced amounts of iron and some trace elements. This unique blend gives it outstanding resistance to oxidation, carburization, and scaling at temperatures that soar above 2000°F (1093°C). It also boasts good creep strength and tensile properties in high-temperature settings, with typical tensile strength falling between 75–85 ksi. Thanks to its low carbon content, the risk of carbide precipitation is minimized, ensuring consistent weld quality in both MIG and TIG applications, whether you’re working with thick or thin sections.
| Class | UNS | Oxford Alloys |
| ER330 | N08331 | Alloy 330 |
| 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 |
| Diameter | Process | Volt | Amps | GAS | |
| in | (mm) | ||||
| .035 | (1.6) | GTAW | 12-15 | 60-90 | Argon 100% |
| .045 | (1.14) | GTAW | 13-16 | 80-110 | Argon 100% |
| 1/16” | (1.6) | GTAW | 14-16 | 90-130 | Argon 100% |
| 3/32” | (2.4) | GTAW | 15-20 | 120-175 | Argon 100% |
| Diameter | Process | Volt | Amps | GAS | |
| in | (mm) | ||||
| .035 | (.9) | GMAW | 17-20 | 70-90 | 75% Argon, 25% Helium |
| .045 | (1.14) | GMAW | 18-22 | 75-160 | 75% Argon, 25% Helium |
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Conrad Welding Supplies is a Top manufacturer and supplier of high-quality AWS Class ER330 MIG and TIG Filler Welding Wire in Houston , USA. Specializing in welding solutions, we provide a wide range of products, including coated electrodes, welding electrodes, flux core, MIG & TIG welding wires, SAW flux and filler wires. Known for our reliable delivery and superior customer service, We are committed to offering top-tier welding materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your welding needs.
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You’ll find ER330 welding wire is commonly used for joining parts that face high heat and corrosive industrial environments, such as furnace components, muffles, retorts, heat shields, burners, and petrochemical reformer tubes. It shines in applications that involve cyclic heating and cooling, where resistance to thermal fatigue is crucial. The stability of this filler metal under extreme thermal conditions guarantees reliable welds with minimal cracking or distortion. For high-temperature fabrication tasks that require both structural integrity and metallurgical reliability over long service cycles, ER330 is the go-to choice.
We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.
Conrad Welding Supplies is a leading manufacturer, supplier and exporter of high-quality Coated Electrodes, Flux Core, MIG & TIG wires, SAW & Flux, Welding Wires, and Filler Wires, catering to various industries in Houston , USA
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