Premium Stainless Steel 347 Round Bars and Rods are available from George Metals, a reputable manufacturer and supplier of premium stainless steel products with headquarters in Houston, USA. These bars are well-known for their exceptional high-temperature performance and resistance to intergranular corrosion, making them perfect for use in demanding settings. George Metals uses strict inspection and quality control to guarantee that every product satisfies ASTM and international quality standards. The aerospace, marine, and chemical processing industries make extensive use of their 347 round bars and rods. George Metals provides dependable stainless steel solutions throughout the USA and abroad with an emphasis on accuracy, robustness, and customer satisfaction.
Stabilised austenitic stainless steels, such as Stainless Steel 347 Round Bars and Rods, are mainly made up of 17–19% Chromium, 9–13% Nickel, and trace amounts of Columbium (Niobium) for improved intergranular corrosion resistance. They also contain silicon, phosphorus, manganese, and carbon (maximum 0.08%). At high temperatures, 347 retains its mechanical integrity and shows outstanding creep strength. It has good ductility and oxidation resistance, and its tensile strength usually falls between 515 and 750 MPa. This alloy is perfect for high-stress and thermal cycling applications because it maintains its toughness even under cryogenic conditions.
| 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 |
Round bars and rods made of stainless steel 347 are frequently used in applications that call for strength at high temperatures and resistance to intergranular corrosion. Chemical processing, petrochemicals, aerospace, food processing, and power generation are examples of common industries. Boilers, radiant superheaters, exhaust systems, pressure vessels, and heat exchangers are all excellent applications for these bars. They are appropriate for settings with frequent thermal cycling because they can function in temperatures as high as 870°C. Because 347 stainless steel is stable against carbide precipitation and ensures structural integrity and long service life in corrosive and high-temperature operating conditions, it is also favoured in welding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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