Weston Stainless in Midland, UK, is a reliable manufacturer of high-quality stainless steel products, delivering corrosion-resistant and long-lasting solutions across multiple industries. Of its high-quality products, Stainless Steel 904L Pipes are well known for their superior resistance to corrosion, high strength, and excellent weldability. Graded as Grade 904L, these pipes are supplied as seamless, welded, and fabricated types to meet diverse industrial demands. Made of austenitic stainless steel, they have exceptional resistance to pitting, acids, and chloride-induced corrosion and are thus a perfect fit for use in severe environments with demands for long-term performance and reliability.
Stainless Steel 904L Pipes consist mainly of iron with high nickel content (23-28%) and chromium content (19-23%), providing excellent corrosion resistance. They also have molybdenum (4-5%), copper (1-2%), and low carbon, which support their mechanical strength and immunity against acidic atmospheres. These pipes have a tensile strength of around 490 MPa, yield strength of about 220 MPa, and elongation of 35%. Their physical characteristics are a density of around 8 g/cm³, good thermal expansion, and high conductivity, which makes them ideal for high-stress and extreme corrosive conditions.
| Standard | ASTM A312 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1510 °C (2750 °F) | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % |
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Stainless Steel 904L Pipes find extensive application in industries demanding superior corrosion resistance, including chemical processing, marine, and offshore. They are critical in heat exchangers, power generation equipment, and pharmaceutical processing equipment, where resistance to sulfuric, phosphoric, and acetic acids is vital. They are also used in seawater desalination, pulp and paper, and food processing industries because of their non-reactive nature and longevity. Their superior mechanical properties, chloride stress corrosion cracking resistance, and long service life make them a popular choice for challenging industrial applications.
High-alloy austenitic stainless steel known for its exceptional corrosion resistance, making it ideal for harsh environments in chemical and marine industries.
Excellent corrosion resistance and strength, suitable for chemical processing, oil and gas, and marine applications, ensuring durability and reliability in harsh environments.
Excellent corrosion resistance and high strength, making it ideal for chemical, petrochemical, and marine applications, offering durability and reliability in demanding environments.
Superior corrosion resistance and high strength, ideal for chemical and petrochemical industries, ensuring durability and reliability in extreme environments and high-pressure applications.
Excellent corrosion resistance and high strength, ideal for structural and architectural applications in chemical, marine, and industrial environments, ensuring durability and longevity.
High corrosion resistance and strength, making it suitable for structural, architectural, and industrial applications, particularly in harsh chemical and marine environments.
Stainless Steel 904L Pipes are accompanied by mill test certificates like EN 10204 3.1 or 3.2, guaranteeing compliance with international standards of quality. They are tightly packed in end caps, plastic wrapping, or wooden crates to avoid transit damage. The delivery schedule is based on the order quantity and location, and reliable logistics ensures punctual shipping. Specialized packaging arrangements are offered on demand to suit customer specifications, so that the pipes reach the customers in the best possible condition.
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