Home > Stainless Steel > Stainless Steel 347 and 347H Welded Tubing
Samia Pipes and Tubes is a trusted manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality Stainless Steel 347 and 347H Welded Tubing. The company prides itself on delivering products that adhere to international quality standards and meet the rigorous demands of today’s industries. With state-of-the-art production facilities, a team of skilled professionals, and stringent inspection processes, Samia Pipes and Tubes guarantees precision, durability, and reliable performance. They cater to various sectors, including petrochemical, power generation, oil and gas, and industrial processing, all while prioritizing customer satisfaction, timely deliveries, and cost-effective solutions without compromising on manufacturing and quality assurance standards.
Stainless Steel 347 and 347H Welded Tubing is an austenitic stainless steel alloy that’s stabilized with niobium to boost its resistance to intergranular corrosion. Its chemical makeup features chromium and nickel, which provide outstanding corrosion and oxidation resistance. The 347H grade has a higher carbon content, enhancing its strength at high temperatures and its resistance to creep. Both grades offer impressive tensile strength, toughness, and ductility, even when exposed to elevated temperatures. These characteristics enable the tubing to endure thermal cycling, pressure, and stress while maintaining its structural integrity in challenging industrial 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
| Element | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
|---|---|---|---|---|---|---|---|---|
| 347 | 0.08 max | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.04 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| 347H | min: 0.04 max: 0.10 | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.03 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| 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 Samia 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.
Samia Pipes and Tubes is the largest supplier of Stainless Steel 317 and 317L Welded Tubing in Tunis, Tunisia. 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, Samia 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@samiapipes.com.
You’ll find Stainless Steel 347 and 347H Welded Tubing commonly used in high-temperature and corrosive settings where strength and stability are crucial. Typical applications include heat exchangers, boilers, superheaters, reheaters, and components for furnaces. These grades are also frequently utilized in petrochemical plants, oil refineries, chemical processing facilities, and power generation sites. Thanks to their excellent weldability and resistance to carbide precipitation, they are ideal for pressure vessels and piping systems that operate under continuous heat and stress, ensuring a long service life and reliable operation.
©2024 Samia Pipes and Tubes . All Rights Reserved.