Stainless Steel 904L Flanges are top-notch components designed for piping systems that demand outstanding corrosion resistance, durability, and long-lasting reliability. As a super austenitic stainless steel grade, 904L excels in resisting strong acids, chlorides, and tough chemical environments, making these flanges perfect for challenging industrial applications. Their sturdy construction guarantees secure, leak-free connections in pipelines used in chemical processing, marine engineering, offshore operations, and high-purity systems.
These flanges are made from a blend of iron, high chromium, nickel, molybdenum, and copper, which gives them a significant edge in corrosion resistance compared to regular stainless steels. The elevated levels of nickel and molybdenum boost their performance against pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides. The addition of copper enhances their resistance to sulfuric and phosphoric acids. With excellent mechanical strength, toughness, and weldability, these flanges maintain their structural integrity even under high pressure, elevated temperatures, and corrosive conditions.
| 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.
Stainless Steel 904L Flanges find their place in various settings, including chemical plants, petrochemical facilities, desalination units, pharmaceutical systems, and marine applications. They come in different types such as slip-on, weld neck, blind, socket weld, and threaded flanges, making them suitable for pipelines that transport corrosive chemicals, seawater, acidic solutions, and high-purity fluids. Thanks to their remarkable corrosion resistance, strength, and reliability, Stainless Steel 904L Flanges deliver safe and durable performance in critical piping and process applications.
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