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Khaled Stainless, located in Cairo, Egypt, is a trusted supplier of AWS Class ER347 submerged arc welding (SAW) wire, along with compatible flux for fabricating stabilized stainless steel. The ER347 SAW consumables from Khaled Stainless are manufactured under rigorous metallurgical standards to guarantee stable arc performance, high deposition rates, and consistent weld metal chemistry. These products are specifically designed for heavy-duty pressure and structural welding, adhering to international AWS and ASME standards. With complete traceability, batch testing, and quick regional availability, Khaled Stainless provides reliable SAW solutions for critical stainless steel welding needs in chemical plants, refineries, boiler manufacturers, and EPC contractors.
ER347 is a niobium-stabilized austenitic stainless steel welding wire, typically composed of 18–20% chromium, 9–11% nickel, and controlled niobium additions to prevent carbide precipitation. The carbon content is kept low to reduce the risk of intergranular corrosion. When paired with the right neutral or basic SAW flux, the deposited weld metal generally achieves a tensile strength of 550–750 MPa, a yield strength of around 350–450 MPa, and an elongation of about 30–40%. This weld metal is known for its excellent toughness, high-temperature stability, and strong resistance to hot cracking during multi-pass welding.
| 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.
ER347 SAW wire and flux systems are ideal for high-deposition welding of thick stabilized stainless steel plates and pipes that face elevated temperatures and corrosive environments. Common applications include pressure vessels, heat exchangers, boilers, refinery piping, exhaust systems, petrochemical reactors, and components for power plants. The niobium stabilization in ER347 makes it particularly suitable for situations where prolonged exposure to temperatures between 425–870°C could lead to intergranular corrosion in non-stabilized grades.
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