2205 Duplex Stainless Steel Bar
2205 cannot be hardened by thermal treatment, but strength and hardness can be increased substantially by cold working, with subsequent reduction in ductility.It is used extensively by the Marine, Chemical, Petrochemical, Pulp and Paper, Oil and Gas, Transport and allied processing industries.
Typical uses are: Anchor Guides, Conveyors, Fasteners, Bushings, High Strength Pump Shafts, Propellor Shafts, plus various applications currently using standard austenitic stainless steel grades.
Material Magnetic due to its part ferritic structure.
|Colour Code||Stocked Sizes|
|Min. %||Max %|
|Temsile Strength Mpa Min.||620|
|0.2% Yield Strength Mpa Min.||448|
|Elongation in 50mm % Min.||25|
|Hardness HB Max||290|
|Temsile Strength Mpa||650 - 900|
|Yield Strength Mpa||570|
|Elongation in 50mm %||30|
|Impact Charpy J||130|
|*2205 is therefore not recommended for use at temperatures above 300oC.|
|Temsile Strength Mpa||650||640|
|Yield Strength Mpa||390||375|
|Charpy V Notch Impact
After 100 Hours at Temp J
|Test Temperature oC||25||0||-20||-45|
|Impact Test Charpy V-Notch||160||60||30||15|
|Stress Corrosion Cracking|
|Pitting Corrosion / Crevice Corrosion|
|Finished parts should be passivated.|
Finished forgings should be air cooled.Finally forgings will require to be annealed in order to obtain optimum mechanical properties and corrosion resistance.
*Actual soaking time should be long enough to ensure that the part is heated thoroughly throughout its section to the required temperature, 30 minutes per 25mm of section may be used as a guide.Please consult your heat treater for best results.
|N.B. All machining should be carried out as per machine manufacturers recommendations for suitable tool type, feeds and speeds.|
Post weld annealing, while not necessary for many applications, will however provide optimum corrosion resistance in severe service conditions.*Please consult your welding consumables supplier.
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