Stainless Steel S32205

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Stainless Steel S32205

Additional information

UNS Number

S32205

Werkstoff Number

1.4462

Description

Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that require good corrosion resistance and strength. The S31803 grade stainless steel has undergone a number of modifications resulting in UNS S32205, and was endorsed in the year 1996. This grade offers higher resistance to corrosion.

At temperatures above 300°C, the brittle micro-constituents of this grade undergo precipitation, and at temperatures below -50°C the micro-constituents undergo ductile-to-brittle transition; hence this grade of stainless steel is not suitable for use at these temperatures.

Duplex 2205 Stainless Steel is a nitrogen-enhanced duplex used in applications requiring high strength and excellent corrosion resistance. It is designed to combine improved resistance to stress corrosion cracking, pitting and crevice corrosion. Duplex 2205 provides nearly double the corrosion resistance typical in other austenitic stainless steels.

Best Stainless supplies Duplex 2205 SS for a variety of industries including oil & gas, petrochemical, marine and pulp & page factories.

Application

Typical applications

  • Oil and gas exploration
  • Processing equipment
  • Transport, storage and chemical processing
  • High chloride and marine environments
  • Paper machines, liquor tanks, pulp and paper digesters

Chemical Component

Chemical Components C Si Mn P S Cr Ni Mo N
Minimum 22 4.5 3 0.14
Maximum 0.03 1 2 0.03 0.02 23 6.5 3.5 0.2

Mechanical Properties

Tensile Strength

σb 

Mpa

Yield Point

σs 

Mpa

Elongation

δ 

%

Hardness 

HBW

≥655 ≥450 long.

≥25

≤293

Product Form

Product Form Size Range From Size Range To
Sheet & Plate 0.30 mm 25 mm
Round Bar 4 mm 380 mm
Tube 6 mm 260 mm

 

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