Louis Metals is a prominent producer and supplier of Stainless Steel 347H Rectangular Bars in Houston, USA, which specializes in offering high-performance stainless steel solutions for high-temperature and corrosive applications. Louis Metals, adhering to quality and innovation, manufactures SS 347H rectangular bars by employing superior raw materials and accurate manufacturing processes. These bars provide improved strength, outstanding resistance to intergranular corrosion, and excellent performance at high temperatures. Relied upon in industries including chemical processing, power generation, and heat exchangers, Louis Metals’ Stainless Steel 347H rectangular bars provide consistent performance in the most severe industrial uses.
Stainless Steel 347H Rectangular Bars are stabilized austenitic stainless steels with an analysis of Chromium (17–20%), Nickel (9–13%), plus added Columbium (Niobium) for stabilizing purposes, with Carbon content up to 0.10% for strength at elevated temperatures. The bars possess very good mechanical properties, with a tensile strength of 550–750 MPa, yield strength of approximately 275 MPa, and good creep resistance. SS 347H retains its strength and corrosion resistance even upon long-term exposure to elevated temperatures, possessing good weldability, oxidation resistance, and resistance to intergranular corrosion following welding or stress-relieving heat treatment.
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 have extensive applications in high-temperature, high-stress situations in a wide range of industries. They are best for heat exchangers, furnace parts, boiler tubes, superheaters, and exhaust systems where resistance to intergranular corrosion and thermal fatigue is essential. SS 347H is utilized in petrochemical and chemical industry processing equipment, reactor vessels, and piping systems. Its higher carbon content provides it with suitability for pressure vessels and structural parts in contact with higher temperatures. These rectangular bars also find application in the aerospace and marine sectors, offering consistent strength and stability in challenging service conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis 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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