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Chanathip Nickel Alloys & Plates, located in Bangkok, is a major manufacturer and supplier of Duplex Steel flanges. We produce high-quality flanges in various grades like S31803, S32205, and Duplex 2205, suitable for many pressure classes and piping applications. Our product range includes weld neck, blind, slip-on, lap joint, threaded, and socket weld flanges. Manufactured to ASTM, ASME, and EN standards, our flanges are recognized for their strength, corrosion resistance, and precision. With thorough inspection and material tracking, our Duplex flanges serve diverse industries including marine, oil and gas, desalination, and power generation.
| 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 |
At Chanathip Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Flanges in Bangkok, Thailand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Thailand, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel flanges see extensive use in industries that need strength and corrosion resistance in harsh conditions. Applications include offshore drilling, marine systems, heat exchangers, pressure vessels, fire protection systems, and pulp and paper mills. These flanges are selected for critical piping networks in desalination plants, chemical refineries, and water treatment facilities. Their high strength allows for thinner sections, reducing weight and cost while ensuring durability. Suitable for both static and dynamic loads, Duplex flanges provide secure connections even in systems facing vibration, pressure cycling, or aggressive media.
