Louis Metals is a trustworthy Stainless Steel 347 Hex Bar manufacturer and supplier in Houston, USA, providing high-quality stainless steel material suitable for high-temperature, high-stress, and corrosive environments. With the latest manufacturing techniques and top-grade raw materials, SS 347 hex bars from Louis Metals are well known for providing superior strength, durability, and resistance to intergranular corrosion. These hexagonal bars find applications in structural applications where stability and precision are crucial. With good weldability and heat resistance, Stainless Steel 347 hex bars are extensively applied across aerospace, chemical processing, oil and gas, and power generation industries where high performance is a requirement.
Stainless Steel 347 Hex Bars are stabilized austenitic stainless steels that include Chromium (17–20%), Nickel (9–13%), and Niobium (Columbium), which avoids precipitation of carbides during welding. The alloy provides a tensile strength of 515–750 MPa, yield strength of approximately 205–275 MPa, and good oxidation and creep resistance. SS 347 does not lose its strength and corrosion resistance even when subjected to prolonged exposure to high temperatures. It is non-magnetic in the annealed state and has good formability and machinability. These characteristics make SS 347 hex bars ideal for precision machining, hot-forming at high temperatures, and welded structures.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| 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 |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347 | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 347 Hex Bars find applications in varied applications where heat and corrosion resistance is essential. These are generally utilized in heat exchangers, pressure vessels, boiler tubes, exhaust manifolds, furnace parts, and superheaters. In petrochemicals and chemicals, SS 347 is used in reactors, piping systems, and storage tanks facing aggressive media and thermal cycling. Its hexagonal shape provides better grip and strength for mechanical and fastening uses. SS 347 hex bars are also best suited for marine, aerospace, as well as high-temperature service conditions where long-lasting durability and dimensional stability are needed.
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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