Mbemba Stainless is a well-respected manufacturer and supplier located in Kinshasa, Congo, celebrated for its top-notch stainless steel products that cater to industrial needs. Among their standout offerings are the Stainless Steel 904L Flanges, which are known for their remarkable resistance to corrosion, impressive durability, and robust strength. These flanges are meticulously crafted to ensure reliable performance even in the most corrosive and challenging environments. With cutting-edge technology and rigorous quality control, Mbemba Stainless guarantees consistent performance, high pressure tolerance, and a long lifespan. The company proudly serves key industries such as oil and gas, chemical processing, marine, and power generation across Central Africa.
The Stainless Steel 904L Flanges from Mbemba Stainless are made up of iron, chromium (19–23%), nickel (23–28%), molybdenum (4–5%), along with trace amounts of copper and manganese. This high-alloy mix significantly boosts their resistance to pitting, crevice corrosion, and harsh acidic conditions. In terms of mechanical properties, they boast a tensile strength ranging from 490–690 MPa, a yield strength of about 220 MPa, and excellent elongation. These flanges also showcase outstanding toughness, ductility, and oxidation resistance at elevated temperatures, ensuring they perform reliably under high pressure and corrosive situations.
| 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 ring type joint flanges are robust, high-corrosion-resistant components designed for high-pressure applications. They ensure a tight seal with their precision-machined grooves, ideal for extreme environments and demanding conditions.
SS 904L forged flanges are premium stainless steel fittings known for their superior strength and corrosion resistance. Ideal for high-pressure and harsh environments, they ensure reliability and durability in critical applications.
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.
The Stainless Steel 904L Flanges by Mbemba Stainless are extensively utilized in industries that demand strong and corrosion-resistant connections. They are perfect for chemical processing plants, oil and gas refineries, power generation systems, and marine settings. These flanges excel in handling sulfuric, phosphoric, and acetic acids, making them ideal for tough chemical applications. They also find use in desalination plants, heat exchangers, and offshore platforms. With their excellent mechanical properties and corrosion resistance, Mbemba Stainless 904L flanges deliver durable, leak-proof connections in critical piping and process systems.







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