Aditya Stainless is a trusted manufacturer and supplier of Stainless Steel 347 Tubing, proudly based in Kolkata, India. We provide top-notch solutions tailored for demanding industrial applications. SS 347 is a niobium-stabilized austenitic stainless steel, specifically engineered to offer outstanding resistance to intergranular corrosion and perform well under high temperatures. Our Stainless Steel 347 tubing comes in both seamless and welded options, meeting international standards like ASTM A213, ASTM A269, and ASTM A312. These tubes are essential in critical settings such as chemical plants, refineries, and thermal processing equipment, ensuring durability, strength, and resistance to corrosion even in extreme conditions.
Stainless Steel 347 Tubing is made up of 17–19% chromium, 9–13% nickel, and niobium (columbium) for stabilization. This alloy excels in high-temperature and corrosive environments, effectively resisting carbide precipitation during welding and thermal exposure. The tubing boasts a minimum tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 35%. It also offers excellent oxidation resistance and creep strength, making it perfect for continuous use in high-heat settings. SS 347 tubing is highly weldable and develops a stable oxide layer, ensuring long-lasting reliability.
| Specifications | : | ASTM A/ASME SA249/A269/A270 |
| Dimensions | : | ASTM, ASME, and API |
| SS 304H Tubes Size | : | 1/8″NB TO 30″NB IN |
| Thickness | : | 1mm to 20mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10 |
| Finish | : | BA Finish inside and outside, Electropolished finish inside and outside |
| Type | : | Electropolished Pipes & Tubes |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Length | : | Up to 6 meters, custom cut lengths |
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 20.00 | 10xC – 1.10 | 9.00 – 13.00 | 62.74 min |
| 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 % |
Contact us to get a quick quote for your requirement.
We sets high standards regarding quality for stainless steel 347 tubing through multiple testing and evaluation procedures. Inspections are extensive and include determination of chemical compositions, mechanical testing, and testing by non-destruction methods on every product. Aditya also offers full documentation in the form of Mill Test Certification.
Offering excellent corrosion resistance, Stainless Steel 347 Seamless Tubing is known for its uniformity and strength. It typically comes in sizes ranging from 6mm to 350mm in diameter and lengths of up to 6 meters. Ideal for applications requiring high pressure and corrosive resistance.
Stainless Steel 347 Welded Tubing provides superior resistance to chloride-induced stress corrosion cracking. Available in sizes from 10mm to 150mm in diameter and standard lengths of 6 meters. It is often used in industrial and chemical processing applications where weld strength is critical.
Featuring outstanding corrosion resistance, Stainless Steel 347 Heat Exchanger Tubes are used in demanding environments. Sizes typically range from 6mm to 50mm in diameter, with wall thickness varying from 1mm to 3mm. These tubes are designed for high temperature and pressure conditions.
Stainless Steel 347 Instrumentation Tubing offers excellent resistance to corrosion and is ideal for precise measurement systems. Common sizes include 1/8″ to 1/2″ in diameter and lengths up to 6 meters. It is suitable for high-pressure applications and harsh environments.
With superior resistance to both oxidation and corrosion, Stainless Steel 347 Boiler Tubes are used in high-pressure steam applications. Sizes typically range from 25mm to 100mm in diameter, with lengths of up to 6 meters. They are essential for maintaining efficiency in boiler systems.
Stainless Steel 347 U-tubes provide excellent resistance to corrosive fluids and are commonly used in heat exchangers. Standard sizes range from 10mm to 100mm in diameter with various lengths. They are designed to handle thermal expansion and contraction in dynamic environments.
Stainless Steel 347 Condenser Tubes are used in marine and power generation applications, offering exceptional resistance to seawater and acidic environments. Sizes typically range from 10mm to 50mm in diameter and lengths up to 6 meters, providing durability and efficiency.
Stainless Steel 347 Fin Tubes are designed for enhanced heat transfer and corrosion resistance in air-cooled heat exchangers. They are available in various diameters, commonly 25mm to 50mm, with fin lengths customizable to specific requirements, ensuring effective cooling in challenging environments.
Stainless Steel 347 Tubing finds its place in various applications where high-temperature strength and corrosion resistance are paramount. You’ll commonly see it in exhaust manifolds, boiler tubes, heat exchangers, refinery piping, chemical processing systems, and pharmaceutical equipment. Its ability to resist intergranular corrosion after welding makes it particularly suitable for post-welded heat zones and cyclic heating environments. SS 347 tubing is also a favorite in the aerospace, power generation, and food processing sectors due to its stability and ease of cleaning. Its robust performance under thermal and mechanical stress makes it a go-to choice for many industries.
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