Ojas Pipes and Tubes, a well-respected manufacturer and supplier located in Kolkata, India, specializes in high-quality Stainless Steel 347 Bars and Rods that are perfect for high-temperature and corrosion-resistant applications. Renowned for their exceptional metallurgical solutions, Ojas delivers these stabilized austenitic stainless steel products with precise dimensions and remarkable durability. Their 347 bars and rods are particularly suited for industries that need resistance to intergranular corrosion, including petrochemical, power generation, and aerospace sectors. With a strong commitment to quality assurance, competitive pricing, and timely deliveries, Ojas Pipes and Tubes has built a solid reputation among clients both domestically and internationally.
Stainless Steel 347 Bars and Rods mainly consist of chromium (17–19%) and nickel (9–13%), with columbium (niobium) added to stabilize against carbide precipitation. This alloy is known for its excellent resistance to intergranular corrosion, especially after being exposed to high temperatures. It boasts a minimum tensile strength of 515 MPa and a yield strength of 205 MPa, along with an elongation of 35%. SS 347 retains its mechanical properties even at elevated temperatures, making it suitable for welded environments and heat treatment processes. Additionally, the alloy maintains good creep strength and oxidation resistance.
Standard Specification : ASTM A276, ASTM A479, ASTM A182
Specification : EN, DIN, JIS, ASTM, BS, ASME, AISI
SS 347 Bright Bars : Outside Diameter in the range of 4mm to 200mm
SS 347 Round Bars : Outside Diameter in the range of 4mm to 500mm
SS 347 Flat Bars : 1 / 2” to 10” in thickness range of 1.6mm to 150mm, Custom Size Stainless Steel Flats available
SS 347 Square Bars : 3mm – 100mm
SS 347 Hex Bars : 4mm – 101.6mm
Length : 1 to 6 Meters, Custom Cut Lengths
Finish : Matt Finish, Bright Polished, Black, NO.4 Finish, Rough Turned, BA Finish
Our SS 347 Round bars conforms to NACE MR0175/ISO 15156
Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
| Grade | Mn | C | P | Si | Cr | S | Ni | Co + Ta | Fe |
| SS 347 | 2 maximum | 0.08 maximum | 0.045 maximum | 0.75 maximum | 17 – 20 | 0.03 maximum | 9 – 13 | 10xC min 1.00 maximum | 62.74 |
| Elongation | Density | Tensile Strength | Melting Point | Yield Strength (0.2%Offset) |
| 40 % | 8 g/cm3 | MPa – 515, Psi – 75000 | 1454 °C (2650 °F) | MPa – 205, Psi – 30000 |
| STANDARD | UNS | AFNOR | WERKSTOFF NR. | BS | JIS | GOST | EN |
| SS 347 | S34700 | – | 1.4550 | – | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
Stainless Steel 347 Bars and Rods offer exceptional resistance to corrosion, especially in high-temperature environments. They provide excellent oxidation resistance and are highly resistant to intergranular corrosion, making them ideal for industries like aerospace, chemical processing, and power generation.
These bars and rods are perfect for use in high-temperature applications, including heat exchangers, furnace parts, chemical reactors, and equipment in industries such as aerospace, chemical processing, and power generation, where resistance to oxidation and scaling is crucial.
Stainless Steel 347 Bars and Rods are widely utilized in applications that demand outstanding resistance to high-temperature corrosion and intergranular attack. Key industries include chemical processing, refining, aerospace, nuclear reactors, and power generation. These rods are commonly found in exhaust manifolds, boiler components, heat exchangers, and furnace parts, especially where high thermal stability is essential. The alloy’s superior weldability and mechanical strength also make it a top choice for pressure vessels, piping systems, and superheater tubes. SS 347 is particularly favored in environments that are exposed to thermal stress.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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