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S31803 2205 stainless steel chemical composition

Specifications – Duplex 2205

  • ASTM: A790, A815, A182
  • ASME: SA790, SA815, SA182

Chemical Composition – Duplex 2205

C Cr Fe Mn Mo N Ni P S Si
Max  Max Max Max Max
.03% 22%-23% BAL 2.0% 3.0% -3.5% .14% – .2% 4.5%-6.5% .03% .02% 1%

Typical Applications – Duplex 2205

Some of the typical applications of duplex steel grade 2205 are listed below:

S31803 2205 stainless steel chemical composition

  • Heat exchangers, tubes and pipe for production and handling of gas and oil
  • Heat exchangers and pipes in desalination plants
  • Pressure vessels, pipes, tanks and heat exchangers for processing and transport of various chemicals
  • Pressure vessels, tanks and pipes in process industries handling chlorides
  • Rotors, fans, shafts and press rolls where the high corrosion fatigue strength can be utilized
  • Cargo tanks, piping and welding consumables for chemical tankers

Physical Properties

S31803 2205 stainless steel chemical composition

The physical properties of grade 2205 stainless steels are tabulated below.

Grade Density
(kg/m3)
Elastic
Modulus(GPa)
Mean Co-eff of Thermal
Expansion (μm/m/°C)
Thermal
Conductivity (W/m.K)
Specific
Heat
0-100°C ( J/kg.K)
Electrical
Resistivity
(nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
2205 782 190 13.7 14.2 - 19 - 418 850

Post time: Feb-13-2023