Stainless Steel 347H Rectangular Bars are among the high-end stainless steel solutions that George Metals, a reputable manufacturer and supplier in Houston, USA, is known for offering. These bars are perfect for sectors like chemical processing, petroleum refining, power generation, and aerospace because they are made to withstand high temperatures and corrosive conditions. George Metals provides 347H rectangular bars that satisfy ASTM and international standards with a strong emphasis on quality control, prompt delivery, and customer satisfaction. Customers looking for dependable, heat-resistant stainless steel products for demanding structural and mechanical applications choose them because of their sophisticated production methods and dedication to accuracy.
For intergranular corrosion resistance, stainless steel 347H rectangular bars are stabilised austenitic stainless steel with small additions of columbium (niobium) and roughly 17–20% chromium and 9–13% nickel. In comparison to 347, 347H offers better high-temperature strength due to its increased carbon content (0.04–0.10%). It offers good elongation and creep resistance, as well as a yield strength of 205 MPa and a tensile strength of about 515 MPa. These bars are appropriate for high-stress, high-heat applications because of their exceptional resistance to oxidation and ability to retain mechanical integrity at high temperatures.
Stainless Steel Rectangular Bar Specification : ASTM A276 / A479, ASME SA276 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
| Grade | C | Mn | Si | P | S | Cr | Ni | Ti |
| 347H | 0.04 – 0.10 | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-13.0 | 8 x C min. |
| (1.00 max.) |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347H | 1.4961 | S34709 |
Stainless steel 347H rectangular bars are widely used in settings that require structural stability and resistance to high temperatures. Heat exchangers, boiler parts, superheaters, and high-temperature chemical tanks are examples of common applications. 347H bars are essential for fabrications exposed to cyclic heating and corrosive media in industries like oil and gas, power plants, aerospace, and petrochemical processing. They are perfect for welded structures and pressure vessel parts because of their resistance to intergranular corrosion and capacity to maintain mechanical strength at high temperatures. These bars are also used in furnace components, exhaust systems, and piping systems that are subjected to extreme heat and pressure.
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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