Nestled in the heart of Kinshasa, Congo, Sadiki Metals has built a strong reputation as a trusted manufacturer and supplier of industrial components. We take particular pride in our Stainless Steel 321H Flanges, which are engineered to meet the most demanding specifications. Understanding the critical nature of your projects, we ensure every flange delivers exceptional performance and longevity, providing a reliable solution for the complex piping challenges faced by industries across the region and beyond.
The strength of our 321H Flanges comes from a specific composition, primarily chromium and nickel, with a key addition of titanium for stability. This alloy is heat-treated to enhance its mechanical properties, resulting in an impressive high-temperature strength and excellent creep resistance. This means the flanges can withstand sustained stress under extreme heat without deforming, making them incredibly durable and reliable under pressure.
| Specifications | ASTM A182 / ASME SA182 |
| Size | 1/8″ NB TO 48″ NB |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti | SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Contact us to get a quick quote for your requirement.
We offers the best quality Stainless Steel 321H Flanges Mbemba Stainless,which has undergone intense testing to produce top quality and performance. The flange is thoroughly tested for meeting international standards and specifications. Products supplied by us are certified by recognized authorities for traceability and reliability in each batch. With modern technology and strict quality control, we ensure durability, corrosion resistance, and good mechanical properties. Mbemba Stainless stands by the delivery of flanges with the highest level of industry standards in functionality and safety.
SS 321H Slip-On Flanges are designed for easy installation and alignment, with sizes ranging from 1/2″ to 24″ in diameter. They offer excellent resistance to high-temperature oxidation and corrosion. Ideal for applications where moderate strength and corrosion resistance are required.
Stainless Steel 321H Weld Neck Flanges are available in sizes from 1/2″ to 24″ and feature a long tapered hub for superior strength and leak-proof performance. They are highly resistant to oxidation and corrosion, making them suitable for high-pressure environments.
SS 321H Blind Flanges come in sizes from 1/2″ to 24″ and are used to seal the end of a piping system. They provide excellent resistance to high temperatures and corrosive environments, ensuring a secure and leak-tight closure.
Stainless Steel 321H Threaded Flanges are available in sizes ranging from 1/2″ to 24″ and are designed for easy assembly without welding. They offer good resistance to oxidation and corrosion, making them suitable for various industrial applications.
SS 321H Socket Weld Flanges, ranging from 1/2″ to 24″ in size, are designed to fit inside a pipe for strong, reliable connections. They provide excellent resistance to high-temperature environments and corrosive substances.
Stainless Steel 321H Lap Joint Flanges are available in sizes from 1/2″ to 24″ and are used with a backing flange to allow for easy alignment and assembly. They offer high resistance to oxidation and corrosive elements, ideal for applications with frequent disassembly.
These flanges are indispensable in environments where heat and corrosion are constant concerns. You’ll find them performing reliably in the high-temperature piping systems of petrochemical plants, power generation facilities, and refinery operations. They are also perfectly suited for applications in chemical processing and in the exhaust systems of aircraft and industrial engines, where their ability to resist oxidation and maintain integrity under thermal cycling is absolutely critical for safety and efficiency.







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