Lecong Stainless, a reputable manufacturer and supplier based in Da Nang, Vietnam, specializes in providing top-notch Stainless Steel 904L Flanges. These flanges are highly sought after for their remarkable corrosion resistance and strength, especially in tough environments. Crafted with a low carbon, high-alloy composition, they excel in resisting strong acids, chloride-induced stress corrosion, and pitting. You’ll find them widely used across various sectors, including chemical, marine, oil & gas, and pharmaceuticals, where durability and reliability are absolutely essential. With a commitment to precision engineering and strict adherence to international quality standards, Lecong Stainless guarantees that each flange delivers long-lasting performance and reliable connections, even in the most challenging conditions.
Stainless Steel 904L Flanges are made up of significant amounts of nickel (23–28%), chromium (19–23%), molybdenum (4–5%), and copper (1–2%). This unique blend enhances their resistance to harsh environments, such as sulphuric and phosphoric acids. The low carbon content in the alloy helps prevent carbide precipitation during welding, which means they maintain excellent weldability and toughness. On a mechanical level, these flanges boast high tensile strength, good ductility, and strong resistance to stress corrosion cracking and crevice corrosion. Their well-balanced chemical and mechanical properties make them a reliable choice for both high-pressure and high-temperature applications.
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Class/Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2 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 – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
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SS 904L Slip On Flanges offer excellent corrosion resistance, high strength, and durability for industrial applications, ensuring reliable performance.
SS 904L long weld neck flanges are engineered for high-strength applications requiring extended weld connections. They offer exceptional corrosion resistance and structural integrity, making them suitable for demanding industrial environments.
SS 904L lap joint flanges are designed for flexibility and ease of assembly, featuring excellent corrosion resistance and strength. Their superior durability makes them ideal for applications in aggressive environments and high-pressure systems.
SS 904L Blind Flanges provide strong corrosion resistance, high durability, and are ideal for sealing pipe ends in demanding environments.
Each and every unit of Stainless Steel 904L Flange is well packed with high-grade substances to curb rust and damage in shipping. We hire an efficient means of transportation to ensure timely delivery to the customers since their satisfaction is top priority. Delivery happens to the clients with all necessary documentation such as certificates of compliance along with material specifications, to ensure transparency and trust.
You’ll find Stainless Steel 904L Flanges widely utilized in industries that demand superior corrosion resistance. In chemical and petrochemical plants, they’re essential for acid processing systems, heat exchangers, and piping networks. In marine settings, they’re used for offshore platforms, seawater cooling systems, and shipbuilding, thanks to their impressive resistance to saltwater corrosion. The oil and gas sector relies on them for refinery equipment, pipelines, and pressure vessels, while the pharmaceutical and food industries trust them for hygienic and contamination-free fluid handling. Their durability and versatility make them indispensable for critical engineering applications.
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