- sales@liampipes.us
- Houston , USA
Home > Stainless Steel > Stainless Steel 321 and 321H Welded Tubing
Liam Pipes and Tubes, Houston, USA, is a reliable manufacturer and supplier of high-quality Stainless Steel 321 and 321H Welded Tubing. Known for its superior heat resistance and corrosion resistance, our tubing finds extensive applications in harsh environments like aerospace, chemical processing, and power generation. Our 321/321H tubing boasts unparalleled durability, elevated strength, and superior weldability and provides trustworthy performance even in harsh conditions. Dedicated to quality and customer satisfaction, Liam Pipes and Tubes provides precision-engineered products meeting the most rigorous industry standards, customized to serve the specific needs of each client.
17–19% chromium, 9–12% nickel, and 0.5–1.0% titanium form the Stainless Steel 321 and 321H Welded Tubing, improving resistance to intergranular corrosion and the avoidance of carbide precipitation when welding. Type 321H has increased carbon for enhanced strength at high temperatures. The tubing has a tensile strength of 515 MPa and a yield strength of 205 MPa, providing consistent performance in high-temperature conditions. Its superior oxidation resistance, strength retention, and weldability make it a good choice for application in aerospace hardware, chemical process equipment, boilers, and energy systems of the industry operating under harsh condition
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
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °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 321 and 321H 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 | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Yes, Liam Pipes and Tubes offer large custom designs for Stainless Steel 321 and 321H 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 321 and 321H Welded Tubing is the best option for corrosive and high-temperature environments where it must provide long-lasting durability. It is widely employed in aerospace, chemical and petrochemical, and power plant applications for equipment like heat exchangers, boilers, exhaust systems, and pressure vessels. The tubing also has application in food processing and medical devices, where it is important to be clean and resistant to heat and corrosion. Its structural integrity and performance under thermal stress give it the capability to be used where continuous operation at high temperatures with little degradation over a period of time is required.
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