Martensitic Stainless Steels
These grades offer better erosion or wear resistance because of the high hardness values that can be obtained through heat treatment. They do provide some corrosion resistance; however are not as resistant as the austenitic grades.
Alloy Properties | |
---|---|
Representative Alloys | CA15, CA6NM. |
Applications | For good wear & corrosion |
Limitations | CA15 is prone to cracking in heavy sections; special procedures improve stress corrosion cracking resistance |
Typical Uses | Aerospace, gas turbines, marine, petro-chemical, pulp and paper, food processing |
Machinability | Fair to good, based on grade & conditions |
Weldability | Requires post-weld stress relief |
Corrosion Resistance | Good in mildly corrosive environments; good erosion resistance, some grades have very good resistance to cavitations |