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Based in Cape Town, Cape Town, Themba Nickel Alloys has earned a solid reputation as a reliable manufacturer and supplier of top-notch alloy components, including high-quality Duplex Steel Flanges. With a strong focus on corrosion-resistant materials, Themba Nickel Alloys produces flanges that adhere to strict international standards, guaranteeing dependable performance in tough industrial settings. Their Duplex Steel Flanges are designed for strength, durability, and resistance to corrosion, making them perfect for challenging environments. Committed to precision manufacturing and customer satisfaction, Themba Nickel Alloys caters to a diverse range of industries both locally and globally.
| 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 | Duplex Steel Flanges |
|---|---|
| C | 0.030 max |
| Mn | 2.00 max |
| Si | 1.00 max |
| P | 0.030 max |
| S | 0.020 max |
| Cr | 22.0 – 23.0 |
| Mo | 3.0 – 3.5 |
| Ni | 4.50 – 6.50 |
| N | 0.14 – 0.20 |
| Fe | 63.72 min |
| Duplex Steel | Flanges |
|---|---|
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669 |
These Duplex Steel Flanges are crafted from stainless steel grades like Duplex 2205, which boasts a well-balanced microstructure of austenite and ferrite. This unique composition provides impressive mechanical strength, with tensile strengths typically ranging from 620 to 850 MPa, along with exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-rich environments. These flanges maintain their integrity even under high pressure and temperature conditions, offering outstanding weldability and fatigue resistance. Their sturdy construction ensures long-lasting reliability in critical piping and pressure vessel applications.
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Duplex Steel Flanges find extensive use in industries such as oil and gas, chemical processing, marine, desalination, and power generation. They are often utilized to connect pipes, valves, pumps, and other equipment in systems that encounter aggressive chemicals and seawater. Thanks to their high corrosion resistance and mechanical strength, they help lower maintenance costs and boost system safety. Duplex Steel Flanges deliver secure, leak-proof connections that can withstand harsh operating conditions, making them the go-to choice for engineers and maintenance teams in demanding industrial environments.
