Chung Metal manufactures premium-quality Stainless Steel 347 Rectangular Bars, an austenitic stainless steel that is stabilized by niobium to avoid carbide precipitation when welding. SS 347 possesses high temperature strength and resistance to intergranular corrosion and is ideal for welding-intensive structures and thermal apparatus. The rectangular shape is best used in frames, plates, and high-temperature assemblies. Chung Metal processes 347 rectangular bars to exact dimensions and uniform quality for consistent performance in chemical, aerospace, and power generation industries.
SS 347 contains 17–19% chromium, 9–13% nickel, stabilizer being niobium. It contains ≤ 0.08% carbon. It possesses tensile strength of 550–750 MPa, yield strength of 200–300 MPa, and elongation of 35–45%. It is non-magnetic and is suitable for temperatures up to 870°C. The rectangular profile is suitable for structural rigidity in applications related to heat. Chung Metal provides these bars with fine surface finish, weldability, and heat resistance for industrial applications.
| Grade | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Ni | Nb |
| 347 | 0.08 | 2.0 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 9.0-13.0 | 10*C-1.0 |
| Grade | Tensile, min, ksi[MPa] | Yield, min, ksi[MPa] | Elongation, %(min) | Hardness, HB（max） |
| 347 | 75【515】 | 30【205】 | 40 | 201 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| 347 | 1.4550 | S34700 | SUS347 | 08Ch18N12B | X6CrNiNb18-10 |
Yes, Stainless Steel 347 Rectangular Bars are designed to withstand high temperatures due to their excellent oxidation resistance and high-temperature strength. They are ideal for applications involving elevated temperatures, such as in aerospace and chemical processing.
Yes, Stainless Steel 347 Rectangular Bars are fully recyclable. Their high recyclability makes them an environmentally friendly option, as they can be reused without losing quality or performance.
The pressure rating of Stainless Steel 347 Rectangular Bars depends on factors such as size, thickness, and application. Generally, these bars are designed to withstand high pressure in demanding environments, but specific ratings should be confirmed based on the application's design codes and standards.
347 rectangular bars find applications in heat exchangers, furnace linings, flanges, pressure vessels, expansion joints, and piping for chemical plants. Their resistance to intergranular corrosion following welding makes them suitable for boilers, welding pipe systems, and components of thermal processes. Being rectangular, they can be utilized as plates, structural frameworks, and mounting platforms in high-temperature and corrosive environments. Chung Metal provides SS 347 bars specifically designed for use in high mechanical strength and thermal stability-based applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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