Duplex Stainless Steel 2205 is designed to prevent common corrosion
issues that occur with stainless steel 300 grades. It belongs to a
family of dual phase austenitic and ferritic stainless steels. This
work hardened steel is a widely used grade among the duplex
stainless steel family as it has better corrosion resistance than
other steels. Presence of both austenitic and ferritic structures
is advantageous in providing high strength, easy fabrication and
extreme resistance to general corrosion and SCC. Good yield and
fatigue strength. Its application temperature is limited to 600oF.
Prolong high temperature exposure may cause embrittlement.
2205 Duplex is an economical and lightweight grade for several
applications in which other steels are prone to SCC at high
temperature. The contents of Chromium (Cr), Nitrogen (N) and
Molybdenum (Mo) elements provide fine resistance to chloride
induced pitting and crevice attacks in the variety of conditions.
It makes 2205 steel useful in seawater, brackish water, bleaching
and food processing operations.
Why Duplex Stainless Steel 2205 is better than austenitic stainless
steels?
- Double yield strength
- Superior localized corrosion resistance than SS 316L
- Higher fatigue strength and impact hardness
- Lower thermal expansion and better conductivity
- More cost saving
Duplex Stainless Steel 2205 Applications
Acid processing tubes, pipes, heat exchanger components, food
processing, oil distillation plants, flue gas desulfurization,
bleach washer, high chloride and seawater applications, pulp and
paper processing, paper digester, heavy transportation automotives,
biofuel plants, pressure vessels.
Industrial Nomenclatures: UNS S31803, S32205, NACE MR0175, 318S13,
EURONORM: 1.4462 X2CrNiMoN 22.5.3, AFNOR: Z3 CrNi 22.05 AZ, DIN:
W.Nr 1.4462, SS 2377, SUS 329J3L, A 22Cr-3Mo Stainless Steel
Duplex Stainless Steel 2205 Specification: ASTM A 182, A 240, A
276, A 789, A 790, A 815, A790, A789, A240, A276, A182, A240M,ASME:
A240
Duplex Stainless Steel 2205 Production
An application temperature above 300oC can destroy the oxidation
resistance property of Steel 2205 due to embrittlement. It can be
corrected by complete solution annealing processing. This steel
grade works well at temperatures lower than 300oC.
The recommended heat processing for Duplex stainless steel 2205 is
solution annealing from 1020 to 1100oC then quick quenching. It can
be work hardened. It has high strength, fine welding and working
properties. It can be welding by any standard welding techniques
but only with filler metals. It has low coefficient of thermal
expansion, therefore the damage and stress issues are lower than
standard austenitic types. Poor machinability.
Forms Produced
| 2205 Duplex Wire | 2205 Duplex Wire Mesh | 2205 Duplex Rod | 2205 Duplex Pipe |
| 2205 Duplex Strip | 2205 Duplex Sheet | 2205 Duplex Flanges | 2205 Duplex Foil |
