Stainless Steel 422 Tubing is manufactured from a martensitic stainless steel alloy containing approximately 11–13% chromium, with additions of molybdenum, vanadium, and tungsten to enhance high-temperature strength. This composition provides excellent creep resistance and mechanical stability at elevated temperatures. The tubing typically exhibits tensile strength between 690–860 MPa after heat treatment, along with good hardness and fatigue resistance. Its martensitic structure delivers high strength, wear resistance, and reliable performance under thermal and mechanical stress.
| Specifications | ASTM A/ASME SA268/A731 CL |
| Dimensions | ASTM, ASME and API |
| SS 409 Pipes | 1/2″ NB – 24″ NB |
| ERW 409 Pipes | 1/2″ NB – 24″ NB |
| EFW 409 Pipes | 6″ NB – 100″ NB |
| Wall Thickness | Schedule 5S – Schedule XXS |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | Round Pipes, Custom Pipes, Square Pipes, Rectangular Pipe, “U” Shape, Hydraulic Pipes |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
| Grade | 409 | |
|---|---|---|
| min | max | |
| C | – | 0.03 |
| Mn | – | 1.00 |
| Si | – | 1.00 |
| P | – | 0.04 |
| S | – | 0.02 |
| Cr | 10.5 | 11.7 |
| Mo | – | – |
| Ni | – | 0.5 |
| N | – | – |
Contact us to get a quick quote for your requirement.
At Walid Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 422 Tubing in Tunis, Tunisia. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Tunisia, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
Stainless Steel 422 Seamless Tubing is available in sizes ranging from 0.5 to 8 inches in diameter. It offers excellent resistance to corrosion and high temperature oxidation. Ideal for applications requiring smooth internal surfaces and high mechanical properties.
Stainless Steel 422 Welded Tubing comes in dimensions up to 12 inches in diameter. It provides robust corrosion resistance and is typically used in applications where high strength and durability are required. Suitable for fluid transport and structural applications.
Stainless Steel 422 Heat Exchanger Tube is available in various sizes, typically ranging from 0.5 to 2 inches in diameter. It boasts excellent resistance to corrosion and high thermal conductivity. Used in systems requiring efficient heat transfer under corrosive conditions.
Stainless Steel 422 Instrumentation Tubing comes in sizes from 0.125 to 1 inch in diameter. It offers high corrosion resistance and precision, making it perfect for critical measurements and control systems. Ensures reliability and durability in instrumentation applications.
Stainless Steel 422 Boiler Tubes are available in sizes up to 4 inches in diameter. They are highly resistant to corrosion and oxidation at high temperatures. Essential for efficient operation and longevity in boiler systems.
Stainless Steel 422 U-Tubes are custom-sized according to specific requirements, generally ranging from 0.5 to 2 inches in diameter. They offer exceptional corrosion resistance and are designed for efficient heat transfer in compact spaces. Ideal for heat exchangers and condensers.
Stainless Steel 422 Condenser Tube is available in sizes ranging from 0.5 to 2 inches in diameter. It provides excellent resistance to corrosion and high thermal conductivity, ensuring efficient condensation processes. Widely used in power plants and refrigeration systems.
Stainless Steel 422 Fin Tubes come in various sizes, typically from 0.5 to 2 inches in diameter, with custom fin heights and spacing. They offer superior corrosion resistance and enhanced heat transfer efficiency. Ideal for heat exchangers in demanding environments.
Walid Stainless is a leading supplier, and stockist of high-quality stainless steel 422 tubing in Tunis, Tunisia. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 422 Tubing is widely used in applications that require high strength and resistance to heat and pressure. Common uses include aerospace components, gas turbine parts, power generation equipment, high-temperature shafts, and mechanical tubing for thermal systems. Its ability to maintain mechanical integrity under elevated temperatures makes it ideal for critical service environments. Engineers and manufacturers choose 422 Tubing for its strength, durability, and dependable performance. Walid Stainless ensures each tube meets stringent quality standards, supporting safe and efficient operation in demanding industrial and mechanical applications.
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