What is the difference between austenitic and duplex stainless steels? Stainless Steels
An austenitic stainless steel is made up of just the austenite microstructure, whereas duplex stainless steels are made up of a combination of both austenite and ferrite microstructures. Consequently, they are much higher strength and resistant to stress corrosion cracking, although slightly harder to fabricate and with a lower toughness.
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