#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=40.2 # Vacuum melted 0.31C wt% 0.43Mn 4.17Ni 1.13Al .92Cu .006S Inland Steel # Austenitized 1hr at 1000C Oil_Quench, Tempr. 1.5hr at 350C, water quench. # Material cyclically softens significantly. See Paper: # 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= 1050. 0.2pc offset = 153 ksi #Su= 1200. = 174 ksi #eu= 0 #strain at Su not reported #E= 200000. mpa =29000 ksi #FractureStrain= 0.74 #FractureStress= 1770. #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 371. Rc=40.2 #%RA= 52. % #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 0.02905 38 1355 0 0.02262 200000 2806 0.02431 91 1362 0 0.01754 200000 2573 0.01927 159 1332 0 0.01287 200000 2266 0.01685 183 1233 0 0.01073 200000 2038 0.01451 433 1193 0 0.00585 200000 1860 0.00924 723 1145 0 0.00365 200000 1454 0.00878 1198 1018 0 0.00371 200000 1336 0.00677 1747 968 0 0.00203 200000 1145 0.00621 5947 971 0 0.00140 200000 1099 0.00597 7372 961 0 0.00126 200000 1071 0.00522 9728 880 0 0.00083 200000 958 # #