Neil Metals stands out as a leading manufacturer and supplier of Stainless Steel 347H Round Bars and Rods, proudly based in Kolkata, India. They specialize in providing top-notch stainless steel products that are perfect for high-temperature and highly corrosive industrial settings. SS 347H is a high-carbon, niobium-stabilized austenitic stainless steel, crafted to offer superior creep strength and resistance to intergranular corrosion. Neil Metals produces these round bars and rods in line with international standards, catering to various industries, including petrochemical, power generation, refineries, heat exchangers, and chemical processing. With cutting-edge manufacturing capabilities and a strong commitment to quality assurance, Neil Metals guarantees precise dimensions, consistent strength, and timely delivery across the globe.
The composition of Stainless Steel 347H Round Bars and Rods includes 17–20% chromium, 9–13% nickel, and 0.04–0.10% carbon, with niobium (columbium) added to prevent carbide precipitation during welding and extended heat exposure. The higher carbon content enhances high-temperature strength and creep resistance. SS 347H boasts a tensile strength of about 515 MPa and a yield strength of roughly 205 MPa, maintaining its structural integrity and oxidation resistance even in environments with continuous service temperatures reaching up to 870°C.
Stainless Steel Round 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 |
When selecting Stainless Steel 347H Round Bars and Rods, consider factors such as high-temperature resistance, corrosion resistance, mechanical strength, fabrication requirements, and cost-effectiveness for your specific industrial application.
Yes, Stainless Steel 347H Round Bars and Rods can be welded. Their niobium content ensures excellent weldability, making them ideal for high-temperature applications when using appropriate filler materials.
Stainless Steel 347H Round Bars and Rods do not have a specific pressure rating. However, they are suitable for high-pressure applications due to their strength, corrosion resistance, and high-temperature stability.
These Stainless Steel 347H Round Bars and Rods are widely utilized in applications where exceptional strength, thermal stability, and corrosion resistance are crucial. Common uses include boiler tubes, heat exchanger components, furnace parts, high-pressure piping systems, and reactor vessels. They are particularly well-suited for welded structures in refineries, chemical plants, and power plants, where thermal cycling and high-stress conditions are the norm. SS 347H is especially advantageous in environments that can’t undergo post-weld heat treatment, ensuring long-lasting durability, mechanical reliability, and resistance to sensitization.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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