Virwadia Metal & Alloys is a leading manufacturer and supplier of high-quality Stainless Steel 347H Seamless Tubes in Chennai. SS 347H is a stabilized austenitic stainless steel with niobium, offering excellent resistance to intergranular corrosion and superior performance at elevated temperatures. Our seamless tubes are precision-engineered to meet international standards and are widely used in chemical, petrochemical, aerospace, and high-temperature industrial applications across Chennai.
| Specification | Details |
|---|---|
| Material Grade | Stainless Steel 347H |
| UNS Number | S34709 |
| Standards | ASTM A213 / ASTM A269 / ASTM A312 / ASTM A789 |
| Outer Diameter Range | 6 mm – 300 mm (Custom sizes available in Chennai) |
| Wall Thickness | 0.5 mm – 20 mm |
| Length | 6m, 12m, or Cut to Size |
| Finish | Pickled & Passivated, Polished, Matte, Annealed |
| Tensile Strength | 515 – 620 MPa (Approx.) |
| Temperature Resistance | Up to 950°C (Continuous Service) |
| Corrosion Resistance | Excellent in atmospheric, chemical, and high-temperature environments |
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 |
| Niobium (Nb) | 10 x C Min – 0.75 Max |
| Carbon (C) | 0.04 – 0.10 |
| Manganese (Mn) | 2.0 Max |
| Silicon (Si) | 1.0 Max |
| Phosphorus (P) | 0.045 Max |
| Sulfur (S) | 0.03 Max |
| Iron (Fe) | Balance |
Our SS 347H Seamless Tubes in Chennai are widely used in high-temperature and corrosion-resistant environments:
Virwadia Metal & Alloys supplies certified and precision-engineered SS 347H Seamless Tubes in Chennai with strict quality control, competitive pricing, and timely delivery. Contact us today for bulk orders, custom sizes, and reliable stainless steel seamless tube solutions in Chennai.
We offer a wide range of metals, including stainless steel (grades 304, 316, 310, 321, 904L), duplex and super duplex steels, Inconel, Hastelloy, aluminum, brass, and copper, available in various forms such as sheets, plates, pipes, tubes, bars, and fittings.
Yes, all our products come with Mill Test Certificates (MTCs) in compliance with EN 10204 standards, ensuring traceability and quality assurance.
Absolutely. We offer cut-to-size services and various surface finishes, including 2B, BA, No.4, and mirror polish, to meet your specific project requirements.
No, we cater to orders of all sizes, from small quantities for individual projects to bulk orders for large-scale industrial applications.
Yes, we provide both domestic and international shipping services, ensuring timely delivery with appropriate packaging and documentation.