Microstructures- Ferrite, Austenite, and Martensite steel

Ferrite Steel: Ferrite stainless steels have good corrosion resistance, especially towards stress corrosion cracking. Lower carbon and nitrogen contents improve both weldability abd toughness which otherwise can be limited.

Austenite Steel: Good to excellent corrosion resistance combined with very good weldability and formability charecterize the austentic stainless steels. The austenitic structure has good creep resistance and good oxidation resistance that makes them useful in elevated temperatures. Austenitic steel can also be used in cryogenic applications and in annealed condition the only non magnetic steel.

Duplex Steel: Duplex stainless steels have high strength, good toughness and very good corrosion resistance, especially towards stress corrosion cracking and corrosion fatigue. These steeks have good weldability and reasonable formability.

Martensite Steel: These stainless steels are charecterized by high strength and high wear resistance. The corrosion resistance is limited and the weldability degrades with increasing strength, i.e.,increasing carbon content.

Click here to see Table1 - Steel Grades, Chemical Composition, Products

Click here to see Table2 - Mechanical Properties, Room Temperature

Click here to see Table3 - Mechanical Properties, High Temperature

Click here to see Table4 - Mechanical Properties, Low Temperature