- sales@lathiefpipes.com
- Safat, Kuwait
Home > Stainless Steel > Stainless Steel 321 and 321H Welded Tubing
Lathief Pipes, based in Safat, Kuwait, is a trusted manufacturer and supplier of premium piping and tubing solutions for industrial applications. Their Stainless Steel 321 and 321H Welded Tubing is engineered to provide exceptional strength, high-temperature resistance, and excellent corrosion protection. Designed for reliability and long-term performance, these tubes are ideal for demanding industrial environments where durability and safety are critical. Lathief Pipes emphasizes quality, precision, and customer satisfaction, making 321 and 321H Stainless Steel Welded Tubing a preferred choice for industries such as petrochemical, power generation, oil and gas, and high-temperature process systems throughout Kuwait and the region.
Stainless Steel 321 and 321H Welded Tubing is made from a stabilized austenitic stainless steel alloy containing titanium, which prevents chromium carbide precipitation and enhances resistance to intergranular corrosion. The 321H variant has a higher carbon content, providing improved high-temperature strength. These tubes offer excellent tensile and yield strength, toughness, and thermal stability, making them suitable for hot, high-pressure environments. Welded construction ensures precision, uniform wall thickness, and smooth surface finish, delivering durable and reliable tubing for long-term industrial use while maintaining consistent mechanical performance under demanding conditions.
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 Lathief 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.
Lathief Pipes and Tubes is the largest supplier of Stainless Steel 317 and 317L Welded Tubing in Safat, Kuwait. 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, Lathief 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@lathiefpipes.com.
Stainless Steel 321 and 321H Welded Tubing is widely used in industries requiring corrosion-resistant, high-temperature tubing. Common applications include heat exchangers, boilers, superheaters, chemical processing units, and exhaust systems in power plants and petrochemical facilities. They are ideal for transporting steam, hot gases, and corrosive fluids while maintaining structural integrity under thermal cycling and high pressure. The stabilized alloy composition ensures long-term performance and resistance to oxidation. With precise welding, durability, and mechanical reliability, 321 and 321H Welded Tubing provides safe, efficient, and consistent operation, making it a trusted choice for demanding industrial and energy-sector applications.
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