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Home > Stainless Steel > Stainless Steel 347 and 347H Welded Tubing
Vipul Pipes and Tubes is a well-known manufacturer and exporter of Stainless Steel 347 and 347H Welded Tubing in Chennai, India, providing top-grade tubing solutions designed for high-temperature and corrosive applications. These austenitic stainless steels are stabilized with niobium (columbium) and provide exceptional resistance to intergranular corrosion and superior mechanical properties. The 347H type, which contains more carbon, is specifically suited for better high-temperature service. Vipul Pipes and Tubes offers welded tubing with accurate size, smooth weld seam, and conformance to global standards, catering to industries such as petrochemicals, refineries, power generation, and aerospace with efficient and economical tubing solutions.
Stainless Steel 347/347H welded tubing has 17–20% chromium, 9–13% nickel, and is columbium (niobium) stabilized to avoid precipitation of carbides during welding. 347H has increased carbon content (0.04–0.10%) for enhanced strength at high temperatures. These alloys provide tensile strength of 515–750 MPa and yield strength of approximately 205–275 MPa. They are good at withstanding thermal stress, have superior oxidation and creep resistance up to 870°C, and possess weldability and formability. The welded tube is strong, corrosion-proof, and can be used for forming, bending, and fabrication in extreme working environments.
Welded Tubes Size : 1 / 8″ NB – 24″ NB
Specifications : ASTM A/ASME SA213, A249, A269, A312, A358
Standard : ASTM, ASME and API
Length : Single Random, Double Random & Required Length
Outer Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB
Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Types : Welded
Form : Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
End : Plain End, Beveled End, Treaded
| 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 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choose Stainless Steel 347 and 347H Welded Tubing from Vipul Pipes and Tubes for exceptional corrosion resistance, superior strength and excellent durability. Ideal for a variety of industrial applications it provides outstanding performance in harsh environments. With precision manufacturing and quality assurance, we ensure reliable and durable tubing solutions.
Vipul Pipes and Tubes is the largest supplier of Stainless Steel 317 and 317L Welded Tubing in Chennai, India. Known for its high-quality products. We offer superior corrosion resistance, strength, and durability. Trusted by industries worldwide they provide reliable precision-engineered tubing for various applications and project needs.
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
| SS 347H | 1.4961 | S34709 | SUS 347H | – | X6CrNiNb18-12 |
Yes, Vipul Pipes and Tubes offer large custom designs for Stainless Steel 347 and 347H Welded Tubing. With design, wall thickness and length. Their adjustable options ensure the tubing meets specific application requirements. This flexibility makes it more efficient and reliable for different industries and environments. For more details, contact us at sales@vipulpipesandtubes.co.in.
Stainless Steel 347 and 347H Welded Tubing finds application for high pressure and temperature service applications, particularly where welding is required. Utilized in chemical plants, power generation houses, and oil refineries, it finds application in exhaust systems, heat exchangers, boilers, and superheaters. In marine and aerospace applications, the tubing is utilized to convey fluid lines under corrosive and changing thermal conditions. Its high weldability and sensitization resistance qualify it to be an excellent choice for welded construction in piping systems, structural parts, and equipment used in aggressive industrial settings.
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