Walid Stainless, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of premium stainless steel tubing for highly demanding industrial and chemical environments. Their Stainless Steel 904L Tubing is engineered for exceptional corrosion resistance, especially against strong acids, chlorides, and oxidizing agents. With high nickel and molybdenum content, it offers superior durability and long-term reliability in harsh environments. Manufactured with precision and strict quality control, Walid Stainless ensures consistent dimensions, smooth surface finishes, and reliable mechanical performance. Customers rely on Stainless Steel 904L Tubing for secure operation, minimal maintenance, and long service life in critical applications.
Stainless Steel 904L Tubing is an austenitic stainless steel alloy containing approximately 19–23% chromium, 23–28% nickel, 4–5% molybdenum, and small amounts of copper to enhance resistance to reducing acids. Its low carbon content improves weldability and minimizes intergranular corrosion. The tubing typically exhibits tensile strength between 500–650 MPa and hardness around 150–190 HB. Its austenitic structure ensures excellent toughness, corrosion resistance, and dimensional stability, even in highly aggressive chemical and marine environments.
| Specifications | : | ASTM A/ASME SA213/ A249/ A269 |
| Dimensions | : | ASTM, ASME and API |
| SS 310/ 310S Tubes Size | : | 1/8″NB TO 30″NB IN |
| Schedule | : | SCH20, SCH30, SCH40, XS, STD, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Thickness | : | 0.35mm to 6.35mm OD in thickness ranging from 0.1mm to 1.2mm. |
| Form | : | Round, Rectangular, Square, Hydraulic Etc |
| Type | : | Seamless / Fabricated / ERW / Welded / LSAW Tubes |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
| AISI 904L | Maximum | Minimum |
|---|---|---|
| Ni | 28.00 | 23.00 |
| C | 0.20 | – |
| Mn | 2.00 | – |
| P | 00.045 | – |
| S | 00.035 | – |
| Si | 1.00 | – |
| Cr | 23.0 | 19.0 |
| Mo | 5.00 | 4.00 |
| N | 00.25 | 00.10 |
| CU | 2.00 | 1.00 |
| Element | Grade 904L |
|---|---|
| Density | 8 |
| Melting Range | 1300 -1390 ℃ |
| Tensile Stress | 490 |
| Yield Stress (0.2%Offset) | 220 |
| Elongation | 35% minimum |
| Hardness (Brinell) | – |
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We practically assures its customers the top quality concerning their products, Stainless Steel 904L Tubing, with intension testing and certification measures. Each of these products is accompanied by elaborate quality checks ranging from the analysis of the material to tensile strength and corrosion resistance tests. With its international certification, the tubing guarantees excellent performance, performance reliability, and adherence to the demands of a specific industry.
Offering excellent corrosion resistance, Stainless Steel 904L Seamless Tubing is known for its uniformity and strength. It typically comes in sizes ranging from 6mm to 350mm in diameter and lengths of up to 6 meters. Ideal for applications requiring high pressure and corrosive resistance.
Stainless Steel 904L Welded Tubing provides superior resistance to chloride-induced stress corrosion cracking. Available in sizes from 10mm to 150mm in diameter and standard lengths of 6 meters. It is often used in industrial and chemical processing applications where weld strength is critical.
Featuring outstanding corrosion resistance, Stainless Steel 904L Heat Exchanger Tubes are used in demanding environments. Sizes typically range from 6mm to 50mm in diameter, with wall thickness varying from 1mm to 3mm. These tubes are designed for high temperature and pressure conditions.
Stainless Steel 904L Instrumentation Tubing offers excellent resistance to corrosion and is ideal for precise measurement systems. Common sizes include 1/8″ to 1/2″ in diameter and lengths up to 6 meters. It is suitable for high-pressure applications and harsh environments.
With superior resistance to both oxidation and corrosion, Stainless Steel 904L Boiler Tubes are used in high-pressure steam applications. Sizes typically range from 25mm to 100mm in diameter, with lengths of up to 6 meters. They are essential for maintaining efficiency in boiler systems.
Stainless Steel 904L U-tubes provide excellent resistance to corrosive fluids and are commonly used in heat exchangers. Standard sizes range from 10mm to 100mm in diameter with various lengths. They are designed to handle thermal expansion and contraction in dynamic environments.
Stainless Steel 904L Condenser Tubes are used in marine and power generation applications, offering exceptional resistance to seawater and acidic environments. Sizes typically range from 10mm to 50mm in diameter and lengths up to 6 meters, providing durability and efficiency.
Stainless Steel 904L Fin Tubes are designed for enhanced heat transfer and corrosion resistance in air-cooled heat exchangers. They are available in various diameters, commonly 25mm to 50mm, with fin lengths customizable to specific requirements, ensuring effective cooling in challenging environments.
Stainless Steel 904L Tubing is widely used in industries where extreme corrosion resistance is critical. Common applications include chemical processing equipment, pharmaceutical machinery, seawater desalination plants, oil and gas facilities, and pulp and paper processing. Its resistance to strong acids, chlorides, and oxidizing conditions makes it ideal for piping, heat exchangers, and welded assemblies. Engineers and maintenance teams rely on 904L Tubing for long service life, safety, and reliable operation. Walid Stainless ensures each tube meets strict quality standards, providing dependable performance in the most challenging industrial, chemical, and marine environments.
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