- sales@liampipes.us
- Houston , USA
Home > Stainless Steel > Stainless Steel 347 and 347H Welded Tubing
Liam Pipes and Tubes, Houston, USA, is a premier producer and exporter of high-quality Stainless Steel 347 and 347H Welded Tubing. With superior resistance to high-temperature oxidation and corrosion, this tubing is well suited to stringent industries like aerospace, chemical processing, and power generation. Our 347 and 347H welded tubing is superior in durability, strength, and weldability—providing consistent performance in harsh conditions. Dedicated to quality, we provide consistent, high–quality products with speedy and efficient service, specifically designed to suit the precise needs of our international customers.
Stainless Steel 347 and 347H Welded Tubing contains 17–19% chromium, 9–13% nickel, and up to 0.45% niobium (columbium), with good high-temperature oxidation and intergranular corrosion resistance. Type 347H, containing a higher carbon content, has better creep strength at high temperatures. The tubing provides mechanical strength with a tensile strength of 515 MPa and yield strength of 205 MPa, and it is stable and reliable in hostile environments. Its excellent weldability and resistance to carbide precipitation make it suitable for applications like boilers, heat exchangers, and pressure vessels.
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 Liam 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.
Liam Pipes and Tubes is the largest supplier of Stainless Steel 317 and 317L Welded Tubing in Houston , USA. 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, Liam 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@liampipes.us.
Stainless Steel 347/347H Welded Tubing is extensively used by various industries that require corrosion and high-temperature resistance. It is most suitable for heat exchangers, boilers, and pressure vessels where mechanical integrity under thermal stress is required. The tube is also used in chemical processing facilities, where it is exposed to corrosive media and severe operating conditions. In aerospace and power generation, it can sustain high-performance systems under high heat and pressure. Its resistance to intergranular corrosion qualifies it for the carriage of hot gases, hostile chemicals, and high-pressure fluids with guaranteed long-term performance and safe operation.
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