Liam Pipes and Tubes stands out as a top-notch manufacturer and supplier of Super Duplex Steel Flanges, proudly based in Jakarta, Indonesia . They’re well-known for providing high-performance flange solutions that industries rely on for their exceptional strength and resistance to corrosion. The company boasts an impressive selection of Super Duplex Flanges that adhere to international standards, making them perfect for even the toughest operating conditions. With cutting-edge manufacturing facilities and a strong commitment to quality, Liam guarantees precision-engineered flanges that are built to last. Catering to clients in the oil & gas, petrochemical, and marine sectors, Liam Pipes and Tubes has earned a solid reputation in both the American and global piping solutions markets.
Super Duplex Steel Flanges are usually crafted from grades like UNS S32750 and S32760, which contain about 25% chromium, 7% nickel, and 3–4% molybdenum, along with nitrogen and iron. This unique chemical makeup significantly boosts their resistance to pitting, crevice corrosion, and stress corrosion cracking. These flanges are known for their remarkable mechanical properties, boasting tensile strength of up to 800 MPa, yield strength around 550 MPa, and impressive impact toughness. The duplex microstructure cleverly combines the advantages of austenitic and ferritic steels, offering superior strength, durability, and corrosion resistance in extreme environments, making them perfect for high-performance applications.
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/8″ NB TO 24″ 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 | : | S32750 / S32760 / S32950 |
Ismail Flanges, a leading supplier in Indonesia, Jakarta, offers an extensive selection of Super Duplex Steel Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
| % | ASTM A182 Super Duplex UNS S32750 And UNS 32760 Flanges |
| C | 0.03 maximum |
| Mn | 1.5 |
| Mo | 3.0-5.0 |
| Ni | 5.5-8.0 |
| N | 0.2-0.35 |
| Si | 0.8 |
| P | 0.035 |
| S | 0.02 |
| Cr | 24-26 |
| Cu | 0.5-3.0 |
| Tensile Strength (in MPa) | 770 |
| A5 Elongation (in %) | 25 |
| Proof Stress 0.2% (in MPa) | 550 |
Super Duplex Steel Flanges find their place in industries that face extreme pressure and corrosive conditions. In the oil and gas sector, they are vital for offshore platforms, subsea pipelines, and refineries, thanks to their outstanding resistance to chlorides and harsh chemicals. In chemical and petrochemical plants, these flanges ensure safe, leak-free connections in high-temperature and high-pressure systems. They’re also utilized in marine, desalination, and power generation facilities. With their excellent mechanical strength, corrosion resistance, and long service life, these flanges are ideal for critical infrastructure in demanding environments.
| Normal Pipe Size | Flanges Diameter (‘O’) | Diameter of (B.C.) ‘A’ | Diameter of (B.H.) ‘D’ | Holes Number | Flanges Wall Thickness ‘C’ | Diameter (Flanges) at Weld Bevel | (Flanges) Diameter of Hub ‘E’ | Length Of Through Hub | Bore (‘B’) | Diameter of (RF) R | Depth of Socket Weld F | Threading Length | ||||
| SORF/ SWRF (Y) | WNRF (Y) | Lap Joit (Y) | SORF/ SWRF (B) | Lap Joit (B) | ||||||||||||
| 1/2” | 15 | 95.2 | 66.7 | 15.9 | 4 | 14.3 | 21.3 | 38.1 | 22.2 | 52.4 | 22.2 | 22.3 | 22.9 | 34.9 | 9.5 | 15.9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4” | 20 | 117.5 | 82.5 | 19.0 | 4 | 15.9 | 26.7 | 47.6 | 25.4 | 57.1 | 25.4 | 27.7 | 28.2 | 42.9 | 11.1 | 15.9 |
| 1” | 25 | 123.8 | 88.9 | 19.0 | 4 | 17.5 | 33.5 | 54.0 | 27.0 | 61.9 | 27.0 | 34.5 | 35.0 | 50.8 | 12.7 | 17.5 |
| 1 | 32 | 133.3 | 98.4 | 19.0 | 4 | 20.6 | 42.2 | 63.5 | 28.6 | 66.7 | 28.6 | 43.2 | 43.7 | 63.5 | 14.3 | 20.6 |
| 1 | 40 | 155.6 | 114.3 | 22.2 | 4 | 22.2 | 48.3 | 69.8 | 31.7 | 69.8 | 31.7 | 49.5 | 50.0 | 73.0 | 15.9 | 22.2 |
| 2” | 50 | 165.1 | 127.0 | 19.0 | 8 | 25.4 | 60.4 | 84.1 | 36.5 | 73.0 | 36.5 | 62.0 | 62.5 | 92.1 | 17.5 | 25.4 |
| 2 | 65 | 190.5 | 149.2 | 22.2 | 8 | 28.6 | 73.1 | 100.0 | 41.3 | 79.4 | 41.3 | 74.7 | 75.4 | 104.8 | 19.0 | 28.6 |
| 3” | 80 | 209.5 | 168.3 | 22.2 | 8 | 31.8 | 88.9 | 117.5 | 46.0 | 82.5 | 46.0 | 90.7 | 91.4 | 127.0 | – | 30.2 |
| 3 | 90 | 228.5 | 184.2 | 22.2 | 8 | 34.9 | 101.6 | 133.4 | 49.3 | 85.7 | 49.3 | 103.4 | 104.1 | 140.0 | – | 31.7 |
| 4” | 100 | 273.0 | 215.9 | 25.4 | 8 | 38.1 | 114.3 | 152.4 | 54.0 | 101.6 | 54.0 | 116.1 | 116.8 | 157.2 | – | 33.3 |
| 5” | 125 | 330.2 | 266.7 | 28.6 | 8 | 44.4 | 141.2 | 188.9 | 60.3 | 114.3 | 60.3 | 143.8 | 144.5 | 185.7 | – | 36.5 |
| 6” | 150 | 355.6 | 292.1 | 28.6 | 12 | 47.6 | 168.4 | 222.2 | 66.7 | 117.5 | 66.7 | 170.7 | 171.4 | 215.9 | – | 39.7 |
| 8” | 200 | 419.1 | 349.2 | 31.7 | 12 | 55.6 | 219.2 | 273.0 | 76.2 | 133.3 | 76.2 | 221.5 | 222.2 | 269.9 | – | 44.4 |
| 10” | 250 | 508.0 | 431.8 | 34.9 | 16 | 63.5 | 273.0 | 342.9 | 85.7 | 152.4 | 111.2 | 276.3 | 277.4 | 323.8 | – | 49.2 |
| 12” | 300 | 558.8 | 488.9 | 34.9 | 20 | 66.7 | 323.8 | 400.0 | 92.1 | 155.6 | 117.3 | 327.1 | 328.2 | 381.0 | – | 55.6 |
| 14” | 350 | 603.2 | 527.0 | 38.1 | 20 | 69.9 | 355.6 | 431.8 | 93.7 | 165.1 | 127.0 | 359.1 | 360.2 | 412.7 | – | 57.1 |
| 16” | 400 | 685.8 | 603.2 | 41.3 | 20 | 76.2 | 406.4 | 495.3 | 106.4 | 177.8 | 139.7 | 410.5 | 411.2 | 469.9 | – | 63.5 |
| 18” | 450 | 742.9 | 654.0 | 44.4 | 24 | 82.6 | 457.2 | 546.1 | 117.5 | 184.1 | 152.4 | 461.8 | 462.3 | 533.4 | – | 68.3 |
| 20” | 500 | 812.8 | 723.9 | 44.4 | 24 | 88.9 | 508.0 | 609.6 | 127.0 | 190.5 | 165.1 | 513.1 | 514.3 | 584.2 | – | 73.0 |
| 24” | 600 | 939.8 | 838.2 | 50.8 | 24 | 101.6 | 609.6 | 717.5 | 139.7 | 203.2 | 184.1 | 615.9 | 615.9 | 692.1 | – | 82.5 |
Yes, we offer custom sizes for Super Duplex Steel Flanges to meet specific project needs. Our team at Ismail Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@ismailflanges.id.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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