Offering a wide selection of Stainless Steel 347 Flat Bars, George Metals is a reputable manufacturer and supplier of high-end stainless steel products in Houston, USA. These flat bars are well-known for their strength, weldability, and resistance to corrosion. They are also known for their longevity. George Metals, which serves a variety of industries including petrochemical, aerospace, power generation, and food processing, guarantees that every 347 flat bar satisfies ASTM and international quality standards. In the USA and abroad, George Metals offers dependable stainless steel solutions that are customised to meet the unique needs of customers. They are supported by knowledgeable technical assistance and a dedication to prompt delivery.
Stainless steel For enhanced intergranular corrosion resistance, 347 Flat Bars are stabilised austenitic stainless steels that are mainly made up of 17–20% Chromium, 9–13% Nickel, and trace amounts of Columbium (Niobium). The maximum amount of carbon that can be present is 0.08%. These bars have outstanding creep resistance at high temperatures, a yield strength of 205 MPa, and a tensile strength of roughly 515 MPa. Pressure vessels, heat exchangers, and furnace components can all benefit from 347 flat bars’ good oxidation resistance, weldability, and ability to retain mechanical integrity at high temperatures.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-13.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| SS 347H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347 | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347 | 1.4961 | S34700 |
| SS 347H | 1.4550 | S34709 |
Because of their exceptional thermal stability and resistance to intergranular corrosion, stainless steel 347 flat bars are widely used in high-temperature and highly corrosive environments. Heat exchangers, chemical processing apparatus, boiler parts, exhaust manifolds, and refinery components are examples of common applications. These flat bars are ideal for industries such as oil & gas, aerospace, power generation, and food processing where continuous exposure to heat and oxidizing agents occurs. They are appropriate for structural support in high-stress situations due to their exceptional mechanical strength and weldability, guaranteeing dependable operation and long service life in both commercial and industrial systems.
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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