Midland, UK-based Weston Stainless is a prominent manufacturer of high-quality stainless steel products, offering strong and corrosion-resistant solutions to a range of industries. Among its high-end products, Stainless Steel 904L Tubing is renowned for its excellent corrosion resistance, high strength, and weldability. Grade 904L is the category under which this tubing falls, and it is offered in seamless, welded, and fabricated forms to suit different industrial requirements. It is made from austenitic stainless steel and has excellent resistance to acidic conditions, pitting, and chloride stress corrosion, making it a good option for use where long-term reliability and strength are needed in severe conditions.
Stainless Steel 904L Tubing mainly contains iron and a high percentage of nickel (23-28%) and chromium (19-23%) for superior corrosion resistance. It also has molybdenum (4-5%), copper (1-2%), and low carbon, which increase its mechanical strength and acid-resistant properties. The tubing is about 490 MPa tensile strength, around 220 MPa yield strength, and 35% elongation. Its physical characteristics are a density of around 8 g/cm³, high thermal conductivity, and good thermal expansion, and it is best used in extreme temperatures and corrosive 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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904L Tubing Stainless Steel finds extensive application in high–corrosion–resistance-requiring industries like chemical processing, marine, and offshore. It plays a key role in power plants, heat exchangers, and pharmaceutical processing equipment where acetic, phosphoric, and sulfuric acid resistance is necessary. It is also utilized in seawater desalination, pulp and paper, and food processing industries because of its non-reactive qualities and durability. Its exceptional mechanical properties, chloride stress corrosion cracking resistance, and extended service life make it the first choice for challenging industrial environments.
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.
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.
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.
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.
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.
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.
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 shipped with EN 10204 3.1 or 3.2 mill test certificates to confirm conformance with international quality standards. It is well-protected packaging in wooden crates, plastic wrap, or tube separators to avert transit damage. Delivery is according to order size and location, with logistics ensuring prompt dispatch. Special packaging arrangements are arranged on request to suit specific client requirements, to ensure the tubing reaches its destination in the best possible condition.
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