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ASTM A182 F53 / UNS S32750 / SAF 2507 Super Duplex Stainless Steel WNRF Flange
Duplex 2507 (UNS S32750) , super Duplex Stainless Steel, which is a highly corrosion-resistant and high-strength alloy.
Here is some information about Duplex 2507 S32750 flanges:
Duplex 2507 Composition: Duplex 2507 is a duplex stainless steel alloy that contains high levels of chromium, nickel, molybdenum, and nitrogen. The composition enhances the corrosion resistance, strength, and toughness of the material. It offers superior resistance to pitting, crevice corrosion, and stress corrosion cracking compared to conventional stainless steels.
Duplex 2507 Flange Properties: Duplex 2507 flanges exhibit excellent mechanical properties, including high tensile strength, yield strength, and impact strength. They have a good combination of high corrosion resistance and high strength, making them suitable for demanding applications in corrosive environments.
Corrosion Resistance: Duplex 2507 S32750 flanges provide exceptional corrosion resistance in various corrosive media. They are resistant to both uniform corrosion and localized corrosion, such as pitting and crevice corrosion. This makes them suitable for use in environments containing chlorides, acids, and other aggressive chemicals, including applications in offshore oil and gas, chemical processing, and marine industries.
High Strength: Duplex 2507 flanges have significantly higher strength compared to austenitic stainless steels. The high strength allows for the use of lighter and more cost-effective designs, reducing material and installation costs. It also makes Duplex 2507 flanges suitable for high-pressure and high-temperature applications.
Weldability: Duplex 2507 S32750 flanges offer good weldability, allowing for ease of fabrication and installation. Proper welding procedures and post-weld heat treatment are essential to maintain the corrosion resistance and mechanical properties of the material.
Applications: Duplex 2507 S32750 flanges are commonly used in a wide range of industries, including oil and gas, chemical processing, desalination, pulp and paper, and offshore and marine environments. They are utilized in various applications such as pipelines, pressure vessels, heat exchangers, pumps, and valves, where both corrosion resistance and high strength are required.
ASTM A182 F53 Super Duplex SS Flange Chemical Composition
| Weight% | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
| Super Duplex F53 | 0.03 max | 1.2 max | 0.035 max | 0.015 max | 0.8 max | 24-26 | 43990 | 43895 | 0.3 | 0.5 max |
ASTM A182 F53 Super Duplex SS Flange Mechanical properties
Alloy | Tensile Strength ksi | Proof Strength 0.2% ksi (min) |
Elongation (%) (min) |
Elongation (%) (min) |
| Super Duplex F53 Annealed Condition |
110-135 |
80 |
15 |
16 |
| ASME B16.5 Super Duplex 2507 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 | |
| Super Duplex Steel 2507 Orifice Flanges, Super Duplex SS 2507
Swivel Flanges, Spades, Spacer Rings Super Duplex 2507 F55 Spectable Blinds, API 6A, JIS B2220, VSM, NFE, BS10/BS4504, GOST | ||
Why Choose ASTM A182 F53 WNRF flanges?
High-level corrosion resistance
High strength and durability
Wide applicability
Easy installation and maintenance
Compliance with international standards
Product Usage & Application
