Walid Stainless, located in Tunis, Tunisia, is a trusted manufacturer and supplier of high-performance stainless steel tubing for extreme service conditions. Their Stainless Steel 446 Tubing is specifically designed for applications requiring exceptional resistance to oxidation, scaling, and corrosion at elevated temperatures. With very high chromium content, this tubing delivers outstanding durability in harsh and heat-intensive environments. Manufactured with precision and strict quality control, Walid Stainless ensures dimensional accuracy, clean surface finish, and long service life. Customers rely on Stainless Steel 446 Tubing for reliable performance where standard stainless steels fall short.
Stainless Steel 446 Tubing is a ferritic stainless steel alloy containing approximately 23–27% chromium with very low carbon content. This high chromium composition provides excellent resistance to oxidation, sulfidation, and corrosion at temperatures up to 1100°C. The tubing typically exhibits tensile strength around 450–550 MPa and hardness between 170–210 HB. Its ferritic structure ensures good thermal conductivity, resistance to stress corrosion cracking, and dimensional stability under continuous high-temperature exposure.
| Specifications | : | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790 |
| Dimensions | : | ASTM, ASME and API |
| Standards | : | GB/T 14975-2002, GB/T 14976-2002, GB 13296-91, API, ASTM A213, ASTM A312, ASTM A269, JIS G3459, JIS G3463, JIS G3448, DIN17458 |
| 446 Pipes & Tubes | : | 1/2″ NB – 24″ NB |
| ERW 446 Pipes & Tubes | : | 1/2″ NB – 24″ NB |
| EFW 446 Pipes & Tubes | : | 6″ NB – 100″ NB |
| Tubing Size | : | 1/8″NB TO 30″NB IN |
| Specialized in | : | Large Diameter Size |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | : | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | N | |
| 446 | Min | – | – | – | – | – | 23.00 | – | – | 0.10 |
| max | 0.2 | 1.5 | 0.75 | 0.040 | 0.030 | 30.00 | – | 0.50 | 0.25 |
| Density | 7.5 g/cm3 |
| Melting Point | 1510 °C (2750 °F) |
| Tensile Strength | Psi – 75,000 , MPa – 485 |
| Yield Strength (0.2%Offset) | Psi – 40,000 , MPa – 275 |
| Elongation | 20 % |
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We rigorously tested to ensure unparalleled quality and performance. Each product is certified to meet international standards, including ISO and ASTM specifications. Advanced testing methods, such as fluid stability, ultrasonic, and corrosion resistance testing, ensure reliability, customer satisfaction and durability
Highly resistant to oxidation and corrosion, Stainless Steel 446 Seamless Tubing is used in high-temperature environments. It comes in various sizes, typically ranging from 1/8 inch to 12 inches in diameter and up to 60 feet in length, ensuring strength and durability without welds.
Offering excellent corrosion resistance, Stainless Steel 446 Welded Tubing is used where cost-effectiveness is key. Available in diameters from 1/4 inch to 8 inches and lengths up to 20 feet, it is ideal for general industrial applications and is welded for a more affordable solution
With superior resistance to high temperatures and corrosion, Stainless Steel 446 Heat Exchanger Tubes are designed for heat exchange systems. Typically available in diameters from 1/2 inch to 4 inches and custom lengths, they ensure efficient thermal transfer and durability under extreme conditions.
Offering excellent oxidation resistance, Stainless Steel 446 Instrumentation Tubing is used in precise measurement systems. Commonly found in sizes from 1/8 inch to 2 inches in diameter, it provides reliability and accuracy in high-temperature and high-pressure environments.
Known for its high corrosion resistance, Stainless Steel 446 Boiler Tubes are designed to withstand high-pressure and temperature in boilers. Typically available in diameters from 1 inch to 5 inches and lengths up to 30 feet, they are essential for reliable boiler operation.
Featuring excellent resistance to oxidation and corrosion, Stainless Steel 446 U-Tubes are used in compact heat exchangers. They generally come in diameters from 1/2 inch to 3 inches, with customizable lengths and bends to fit specific heat exchanger designs
Stainless Steel 446 Condenser Tubes are highly resistant to high-temperature corrosion. Available in sizes from 1/4 inch to 6 inches in diameter and varying lengths, these tubes are used in condenser systems to handle heat and corrosion effectively.
Offering exceptional corrosion and oxidation resistance, Stainless Steel 446 Fin Tubes enhance heat transfer efficiency. Typically available in diameters from 1/2 inch to 3 inches with fins of various lengths and configurations, they are used in heat exchangers and cooling systems.
Stainless Steel 446 Tubing is widely used in industries exposed to extreme heat and corrosive atmospheres. Typical applications include furnace components, radiant tubes, heat exchangers, petrochemical processing units, incinerators, and high-temperature exhaust systems. Its superior resistance to scaling and oxidation makes it ideal for continuous high-temperature service. Engineers and plant operators rely on 446 Tubing for safety, longevity, and dependable performance. Walid Stainless ensures each tube meets strict quality standards, supporting reliable operation in the most demanding industrial environments.
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