Duplex Stainless Steel 2205 Properties

The name 2205 comes from a typical.

Duplex stainless steel 2205 properties.

Rockwell c hr c brinell. Duplex 2205 stainless steel both ferritic and austenitic is used extensively in applications that require good corrosion resistance and strength. Duplex 2205 is a two phase ferritic austenitic 22 chromium 3 molybdenum 5 to 6 nickel alloyed stainless steel. Yield strength 0 2 proof mpa min.

Chemical processing storage and transport. Table 2 mechanical properties of 2205 grade stainless steels. Established in 1981 iso 9001 certified co. Their microstructures consist of a mixture of austenite and ferrite phases.

2205 is annealed at 1020 1100 o c followed by rapid cooling. As a result duplex stainless steels display properties characteristic of both austenitic and ferritic stainless stee ls. Iso 14001 certified co. Powerful machines and rigid mounting of tools and parts are essential.

Pulp and paper industry. 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. Oil and gas extraction and processing. Although 2205 has good high temperature oxidation resistance this grade like other duplex stainless steels suffers from embrittlement if held for even short times at temperatures above 300 o c.

If embrittled this can only be rectified by a full solution annealing treatment. Due to excellent corrosion resistance and high strength the most widely used duplex stainless steel is 2205. With high speed steel tooling 2205 duplex stainless steel plate may be machined at the same feeds and speeds as alloy 316l. When carbide tooling is used cutting speeds should be reduced by about 20 relative to the speeds for alloy 316l.

For optimum corrosion resistance surfaces must be free of scale and foreign particles. 2205 has better fatigue strength in corrosive environments than the standard austenitic stainless steel grades due to its higher strength and higher corrosion resistance n b.