Synonyms: Chromium alloy, nonbase, Co 56-68,Cr 25.00-29.00,Mo 5.00-6.00,Ni 1.75-3.75,Fe 0-3.00,Mn 0-1.00,Si 0-1.00,C 0.20-0.30,B 0-0.007 (UNS R30021);Iron alloy, nonbase, Co 56-68,Cr 25.00-29.00,Mo 5.00-6.00,Ni 1.75-3.75,Fe 0-3.00,Mn 0-1.00,Si 0-1.00,C 0.20-0.30,B 0-0.007 (UNS R30021);Manganese alloy, nonbase, Co 56-68,Cr 25.00-29.00,Mo 5.00-6.00,Ni 1.75-3.75,Fe 0-3.00,Mn 0-1.00,Si 0-1.00,C 0.20-0.30,B 0-0.007 (UNS R30021);Molybdenum alloy, nonbase, Co 56-68,Cr 25.00-29.00,Mo 5.00-6.00,Ni 1.75-3.75,Fe 0-3.00,Mn 0-1.00,Si 0-1.00,C 0.20-0.30,B 0-0.007 (UNS R30021);