#Copyright (C) 2012 F.D.E. Committee #This data file is free software - you can redistribute it and/or #modify it under the terms of the GNU General Public License as #published by the Free Software Foundation; either version 2 of the #license, or (at your option) any later version. #This data file is distributed in the hope that it will be useful, #but WITHOUT ANY WARRANTY - without even the implied warranty of #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #GNU General PUblic License for more details. #You should have received a copy of the GNU General PUblic License #along with this program - if not, write to the Free Software #Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA #Try also their web site: http://www.gnu.org/copyleft/gpl.html # # AISI P21 (modified +Cu) Tool Steel HRc=35.3 # Vacuum melted 0.31C wt% 0.43Mn 4.17Ni 1.13Al .92Cu .006S Inland Steel # Austenitized 1hr at 1000C Oil_Quench, Tempr. 10hr at 650C, water quench, # then aged 8hr at 550C water quenched. # Material cyclically softens slightly at low strain levels and hardens # at higher strain levels. See Paper Treatment III: # Ref.: R.A.Fournelle, E.A.Grey, M.E.Fine, "Fatigue Behavior of a # Precipitation Hardening Ni-Al-Cu medium Carbon Steel," Met.Trans A # V7A May 1976 pp.669-677. Paper also contains Crack Prop. info. # Data digitized from graphs and may contain errors. # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= AISI-P21 #NAME= ToolSteel #NAME= Modif.+Cu #Stress_units= mpa #Strain_units= strain #Sy= 970. 0.2pc offset = 141 ksi #Su= 1090. = 158 ksi #eu= 0 #strain at Su not reported #E= 200000. mpa =29000 ksi #FractureStrain= 0.64 #FractureStress= 1630. #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 327. Rc=35.3 #%RA= 47. % #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 0.01899 16 1244 0 0.01361 200000 2174 0.01702 24 1265 0 0.01094 200000 2075 0.01565 45 1252 0 0.00970 200000 1980 0.01439 99 1228 0 0.00860 200000 1880 0.01153 361 1160 0 0.00571 200000 1636 0.00979 491 1129 0 0.00405 200000 1487 0.00687 1083 1087 0 0.00151 200000 1222 0.00593 1649 992 0 0.00086 200000 1085 0.00490 3209 930 0 0.00018 200000 955 0.00427 5607 865 0 0.00010 200000 859 # #