Hexa Metal Trading Co., is leading Supplir ofDuplex & Super Duplex Steel Flanges. Duplex 2205 and Super Duplex 2507 stainless steel flanges are distinguished by their exceptional yield strength, which surpasses that of annealed austenitic stainless steels like 304 and 316. With twice the yield strength, Duplex 2205 and Super Duplex 2507 are among the most prevalent grades utilized for flanges, with Super Duplex 2507 flanges offering superior corrosion resistance.
The enhanced corrosion resistance of Super Duplex 2507 flanges makes them ideal for applications susceptible to stress-corrosion cracking, crevice corrosion, pitting, erosion, and general corrosion. Consequently, these flanges find extensive use in chemical processing, petrochemicals, the power industry, and seawater equipment.
However, it’s imperative to restrict the usage of both Duplex and Super Duplex stainless steel to temperatures below 570°F, as prolonged exposure to elevated temperatures can lead to embrittlement of the material.
The most prevalent grades of Duplex flanges include Duplex 2205 and Super Duplex 2507. To delve deeper into these grades, explore our comprehensive overviews of Duplex 2205 and Super Duplex 2507 or reach out to our engineering experts for further insights.
Flange Types Available:
Blind Flanges, Lap Joint Flanges, Slip On Flanges, Socket Weld Flanges, Threaded Flanges, Weld Neck Flanges
| Size Range | 1/2 NPS to 40 NPS (15 NB to 1000 NB) |
| Class | 150#, 300#, 400#, 600#, 900#, 1500#, 2500#, PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100 |
| Grades | F-304, 304L, 304H, 304N, 304LN, 316, 316L, 316H, 316Ti, 316N, 316LN, 310, 317, 317L, 321, 321H, 347, 347H, 904L F-51, 53, 55, 60, 68 |
| Specifications | ASTM, ASME, DIN EN |
| Type | SO, WN, SW, BL, THRD, Lap Joint, Orifice Type, Reducing Flanges, Spectacle Blind |
| Face | RF, FF, RTJ, T&G |
| Applications | Pipeline engineering, Marine industry, Power industry, Oil & gas industry, Waste water management, Aerospace, Plant engineering ,Chemical industry, Food processing |
| Duplex 2205 | Fe | Cr | Ni | Mo | Mn | Si | N | P | C | S |
| Min % | 22 | 4.5 | 3 | |||||||
| Max % | Bal | 23 | 6.5 | 3.5 | 2 | 1 | 0.2 | 0.03 | 0.03 | 0.02 |
Super Duplex 2507 | Fe | Cr | Ni | Mo | Mn | Si | N | P | C | S |
Typical | – | 25.0 | 7 | 4 | ≤1.2 | ≤0.8 |
| ≤0.015 | ≤0.030 | ≤0.015 |
Temperature(F) | Ultimate Tensile (Ksi) | Yield Strength at0.2% Offset | Elongation % |
Room Temp | 113 -131 | 70- 97 | 25 |
400 | 93 – 106 | 51 – 75 | – |
600 | 94 | 56 | – |
700 | 93 | 54 | – |
Temperature(F) | Ultimate Tensile (Ksi) | Yield Strength at0.2% Offset | Elongation % |
Room Temp | 116 | 80 | 15 |
212 | 101 | 65 | – |
302 | 98 | 61 | – |
392 | 95 | 58 | – |
482 | 94 | 55 |
As one of the Leading Steel Companies, Hexa Metal Trading Co. has always been determined to provide the best Quality and Service to their customers. We are Importers, Exporter, Stockists, and Suppliers of ferrous and non-ferrous metals.
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