ASTM A182 F51 / UNS S31803 Weld Neck Flange Duplex 2205 WNRF Flange
ASTM A182 F51 / UNS S31803 / Duplex 2205 Weld Neck Flange WNRF Flange
Duplex Steel WNRF (Weld Neck Raised Face) Flange combines the unique properties of duplex stainless steel with a sturdy flange design. Generally, duplex steel flanges used in high-pressure, high-temperature systems or corrosive environments with available types such as blind, slip-on, weld neck, and socket weld.
Advantages of Duplex S31803 Flange:
- High Strength: Greater strength compared to standard austenitic flanges, allowing for thinner walls.
- Corrosion Resistance: Excellent in corrosive environments, including chloride-rich conditions.
- Versatility: Suitable for various applications in industries like oil and gas, chemical processing, and marine.
ASTM A182 F51 Duplex Steel Flange Chemical Composition
| C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
ASTM A182 F51 Duplex Steel Flange Mechanical Table
| Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
|---|---|---|---|
| 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Other Types of Duplex Steel Flange
| Duplex 2205 Flanges | EN TYPE | DIN |
|
WN – Welding Neck |
EN-TYPE 11 |
DIN 2631 |
| DIN 2632 | ||
| DIN 2633 | ||
| DIN 2634 | ||
| DIN 2635 | ||
| BL – Blind | EN-TYPE 05 | DIN 2527 |
| SO – Slip On | EN-TYPE 01/12 | |
|
LJ – Lap Joint |
EN-TYPE 02/04 |
DIN 2641 |
| DIN 2642 | ||
| DIN 2655 | ||
| DIN 2656 | ||
| LWN – Long Welding Neck / Integral | EN-TYPE 21 | |
| Welding Collars | EN-TYPE 32/34 | |
| Super Duplex 2507 Flat Flange for Welding | DIN 2573 | |
| DIN 2576 | ||
| SW – Socket Weld | EN-TYPE 14 | |
| THR – Threaded | EN-TYPE 13 | DIN 2566 |
| Super Duplex 2507 Lap Joint Short Stub End | DIN 2673 |
Product Usage & Application
- Petrochemical Industry
- Chemical Industry
- Nuclear Power Plant Industry
- Oil and Gas Industry
- Research & Development
- Mega Projects & Defense & Development Industries
- Pulp & Paper Industry
- Marine Applications
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