Duplex Stainless Steel 2205 Composition

Duplex 2205 data sheet specification.

Duplex stainless steel 2205 composition.

Duplex 2205 also known as uns s32205 is a nitrogen enhanced stainless steel. As a result duplex stainless steels display properties characteristic of both austenitic and ferritic stainless stee ls. The uns designation for saf 2205 is s31803 s32205 and the en steel no. It is the most widely used duplex stainless steel grade and is characterized by high yield strength double that of the standard austenitic stainless steel grades.

This combination allows the alloy to be stronger and tougher than standard austenitic steels. Duplex 2205 is a two phase ferritic austenitic 22 chromium 3 molybdenum 5 to 6 nickel alloyed stainless steel. Its most important properties are excellent corrosion resistance and high strength. Its high chromium and molybdenum content gives the stainless steel excellent corrosion resistance.

2205 is a duplex stainless steel with a chemical composition of nearly equal proportions of austenite and ferrite. The following tables show saf 2205 duplex stainless steel datasheet and specifications such as chemical composition physical properties mechanical properties heat treatment welding etc. The following table lists alloy 2205 stainless steel chemical composition based on cast. Applications include chemical processing oil and gas exploration marine and other high chloride environments and paper digestors.

2205 is the most widely used duplex ferritic austenitic stainless steel grade. Combining many of the beneficial properties of both ferritic and austenitic steels 2205 is the most widely used duplex stainless steel grade. Users choose duplex 2205 for its excellent corrosion resistance along with its high strength. The idea of duplex stainless steels dates back to the 1920s with the first cast being made at avesta in sweden in 1930.

Saf 2205 also known as sandvik saf 2205 is a sandvik owned trademark for a 22cr duplex ferritic austenitic stainless steel. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades. Duplex s tainless steel are extremely corrosion resistant work hardenable alloys. The microstructure provides resistance to stress corrosion cracking and ensures high strength.

Their microstructures consist of a mixture of austenite and ferrite phases. It is important to note that duplex 2205 offers much higher levels of corrosion resistance than most other austenitic stainless steels.