Below are the general compositional contents of these groups. They have good heat and corrosion resistance, in particular sea water, and good resistance to stress-corrosion cracking. Their mechanical properties are not as strong as the austenitic grades, however they have better decorative appeal. They contain chromium but usually contain no nickel, except for 2 grades. Martensitic steels are not as corrosive resistant as austenitic or ferritic grades, but their hardness levels are among the highest of the all the stainless steels.
Some austenitic steels tend to become slightly magnetic after cold working.
Austenitic steels have excellent corrosion and heat resistance with good mechanical properties over a wide range of temperatures. Book 7th ed., by Brandes, E.A., et al. Properties and Selection 6th ed.