2205 duplex stainless steel flange
2205 Duplex Steel Flange Introduction
2205 duplex stainless steel flanges are widely used as connectors in piping systems, and their unique chemical composition and microstructure give them excellent mechanical and corrosion resistance in many harsh environments.2205 flanges can effectively connect pipelines, valves, pumps, and other equipment, and are an indispensable component in the petroleum, chemical, marine, and other industrial fields.
Standards & Specifications
2205 Duplex Stainless Steel Flanges follow a variety of international standards which ensure the quality and consistency of the flanges. Common standards include:
- ASTM A182: This is a standard for forged or rolled alloy steel pipe flanges, forgings and valves and parts commonly used in high temperature service.
- ASME B16.5: Covers pipe flange sizes and ratings from NPS 1/2 to NPS 24.
- EN 1092-1: European standard specifying requirements and dimensions for steel flanges.
2205 Stainless Steel Flange Advantages
Excellent corrosion resistance
Due to its high chromium and molybdenum content, 2205 duplex steel flanges have much higher corrosion resistance than standard austenitic stainless steels such as 304 and 316. It performs particularly well in chloride-containing and seawater environments.
high strength
The yield strength of 2205 duplex steel flanges is about 250MPa, which is twice as high as ordinary austenitic stainless steel, so the wall thickness can be reduced and the weight can be lightened in the design, thus reducing the cost.
Good welding properties
2205 duplex steel flanges have good welding performance and do not require preheating or post heat treatment. However, in order to maintain its excellent corrosion resistance and mechanical properties, it should be properly heat treated after welding.
Good impact resistance
The duplex structure provides higher strength and toughness. The ferrite phase provides good impact resistance, while the austenite phase provides higher ductility and toughness.2205 Duplex steel flanges maintain good impact resistance at low temperatures.
Installation Precautions
The following points need to be considered when installing 2205 duplex stainless steel flanges:
- Prevention of stress corrosion cracking: Avoid excessive tensile or torsional forces on the flange during assembly, which can lead to the formation of microcracks.
- Use of appropriate gasket material: To ensure sealing performance, it is particularly important to select a gasket material that is compatible with 2205 material.
- tighten evenly (i.e. with a screwdriver): Ensure uniform application of force when tightening flange bolts to avoid flange deformation or uneven stress distribution.
Application Areas
Duplex Stainless Steel is widely used in several applications due to its excellent mechanical properties and corrosion resistance. The following are some of the major applications of Duplex Stainless Steel:
Leave your contact information
We will call you back within 24 hours.
English 
Chinese 