X55CrMnNiN20-8
Other Steels
Property Overview
Density7.8g/cm³
Elastic ModulusUnknown
Tensile Strength900-1150MPa
Yield Strength550MPa
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
Mechanical
A - Min. elongation at fracture (%) (+AT)
8
R p0.2 0.2% proof strength (MPa) (+AT)
550
R p0.2 0.2% proof strength (MPa) (+AT)
550
+AT
Rm - Tensile strength (MPa) (+AT)
900-1150
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
Rockwell C hardness ( HRC or RC): (+AT)
28
Other
Z - Reduction in cross section on fracture (%) (+AT)
10
Registered Designations & Aliases
1.4875X55CrMnNiN20-8
Standards
EN 10090 EN 10090: 1998 Valve steels and alloys for internal combustion engines