Home > Electrodes > AWS Class ER347 SAW and FLUX
Aditya Stainless, a well-respected manufacturer and supplier based in Kolkata, India, specializes in high-performance AWS Class ER347 Submerged Arc Welding (SAW) Wire and Flux. This product is perfect for welding stabilized austenitic stainless steels like 347 and 321. The ER347 wire includes niobium (also known as columbium) to help prevent intergranular corrosion, particularly in high-temperature applications or those that experience repeated thermal cycling. When used with the right flux, this wire ensures excellent arc stability, minimal spatter, and smooth bead profiles. It’s especially ideal for large-scale fabrication projects that demand consistent weld quality, such as pressure vessels, heat exchangers, and piping in the power generation and chemical industries.
ER347 typically consists of 18–21% chromium, 9–11% nickel, and columbium (Nb) for stabilization, along with a maximum of 0.04% carbon. The addition of niobium helps to prevent carbide precipitation during welding and when exposed to high temperatures for extended periods, ensuring corrosion resistance. When paired with compatible SAW flux, it boasts impressive mechanical properties, including a tensile strength of at least 80,000 psi (550 MPa), yield strength of at least 60,000 psi (415 MPa), and an elongation of at least 30%. ER347 provides smooth arc performance, low spatter, and easy slag removal, making it a great choice for automated or high-deposition welding processes involving thick stainless steel sections.
| Classification | AWS A5.9, ER347 |
| Form | Welding Fluxes and Wires |
| Type Of Welding | Submerged Arc Welding |
| Thickness available | Upto 4 mm |
| AWS ER347 SAW & Flux Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu | Element | Amount |
| 0.08 | 19.0-21.5 | 9.0-11.0 | 0.75 | 1.0-2.5 | 0.30-0.65 | 0.03 | 0.03 | 0.75 | Nb | 10XC min/1.0 max |
| Tensile Strength, kpsi: | 57* |
| Yield Strength, kpsi: | 86* |
| Elongation %: | 35* |
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Alloy ER347 SAW and Flux are used for submerged arc welding of stainless steel, offering high resistance to intergranular corrosion, excellent strength, and a clean, slag-free weld for high-temperature applications.
AWS A5.9 ER347 SAW and Flux Welding Wire is designed for submerged arc welding of stainless steel, providing strong, durable welds with high resistance to intergranular corrosion and a clean, efficient finish.
AWS Class ER347 Submerged Arc Welding Flux provides excellent arc stability and a clean, slag-free weld. It enhances corrosion resistance and weld quality for high-temperature and stainless steel applications.
We uphold stringent quality standards for our AWS Class ER347 SAW and FLUX, subjecting them to rigorous testing. Our extensive tests encompass the Hardness Test, Chemical Analysis via Spector Analysis, PMI Testing, Flattening Test, Micro and Macro Tests, Pitting Resistance Test, Flaring Test, and Intergranular Corrosion (IGC) Test. Commercial invoice, packaging list, Certificate of Origin, and Guarantee Letter accompany our products. For added assurance, we offer third-party inspection certificates, validating the excellence and suitability of our AWS Class ER347 SAW and FLUX across various applications and ensuring client satisfaction.
AWS ER347 SAW Wire and Flux are widely utilized in welding components made from stabilized stainless steels (347 and 321) that face high temperatures and corrosive environments. Common applications include the fabrication of boilers, superheaters, pressure vessels, heat exchangers, and reactor components in chemical, petrochemical, and power generation plants. It’s also used in food processing equipment and piping systems that cannot undergo post-weld heat treatment. The stabilization provided by niobium ensures resistance to intergranular corrosion, making it a reliable choice for demanding environments.
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