STAINLESS STEEL MATERIAL SELECTION
B O R N
F R O M
F I
R E ,
M A D E
T O
E N D U R E
AUSTENITIC STAINLESS STEEL
(
γ
- iron)
Good to excellent corrosion resistance combined with very good
weldability and formability characterize the austenitic stainless
steels. The austenitic structure has good creep resistance and good
oxidation resistance that make them useful at elevated temperatures.
Austenitic steel can also be used in cryogenic applications and in
annealed condition it is the only non-magnetic steel.
Duplex stainless steels have high strength, good toughness and
very good corrosion resistance, especially towards stress corrosion
cracking and corrosion fatigue. These steels have also good
weldability and reasonable formability.
Ferritic stainless steels have good corrosion resistance, especially
towards stress corrosion cracking. Lower carbon and nitrogen
contents improve both weldability and toughness which otherwise
can be limited.
DUPLEX STAINLESS STEEL
(Austenitic-ferrite)
FERRITIC STAINLESS STEEL
(
α
- iron)
More than 8% of Nickel
5% of Nickel
0% of Nickel
