Duplex Stainless Industrial Flanges

Duplex Stainless Steel Flanges are wide used in various industries because of their high strength and excellent resistance to stress and corrosive. This material has been developed and improved for a long time and they replace Austenite in some applications. Their comprehensive properties that excellent strength and corrosion resistance make the flanges win the favor of customers, they have become one of the best flange with low cost and high quality.

Duplex Stainless Steel Forged Flanges

Forged Steel Flange is common in piping system with the advantages of simple to install, detachable and leak proof. There are many connection types, such as blind flanges, plate flanges, weld neck flanges, socket weld flanges, slip on flanges, threaded flanges, spectacle blind, SAE flanges, Table D Flanges, Table E flanges, spade and spacer.

Super Duplex Forged Flange Material

Super Duplex Stainless Steel Flange like S32750, is a mixed microstructure of austenite and ferrite which has improved strength over ferritic and austenitic steel grades. The main difference is that Super Duplex has a higher molybdenum and chromium content which gives the material greater corrosion resistance than standard duplex grades.

Duplex Forged Industrial Flanges Dimensions

Standard	ASME/ANSI B16.5, B16.47, B16.48
Diameter	DN15–600 / NPS 1/2–24
Pressure	Class 150, 300, 600, 900, 1500, 2500.
Seal Face	FF( Flat Face), RF (Raised Face), RTJ (Ring Type Joint)
Face Schedule	Sch 10, 20, 40, 80, 160, XXS
Duplex Stainless Steel	ASTM A182 F51, F53, F55, S 31803, S 32205, S 32550, S 32750, S32760
Flange Types	Weld Neck Flange, Slip On Flange, Socket Weld Flange, Threaded Flange, Blind Flange, Plate Flange, Spectacle Blind, Spade and Spacer.

Duplex Flange Grade

The materials are mainly covered in ASTM A182. This standard includes chemical composition, mechanical properties, heat treatment, , testing and other relevant specifications of manufacturing. Common used grades are A182 F51,F53,F55 and F60.

Duplex Stainless Steel Flanges have many advantages, and the most prominent advantages are:

• High yield strength and good toughness.
• Excellent resistance to stress corrosion cracking.
• Extremely high corrosion resistance
• Excellent welding performance.