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#Copyright (C) 2021 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 # 2507 SuperDuplexStainless , Sandvik, UNS S32750, EN 1.4410 # Austenite=57pc rest=Ferrite, Spec. from 30mm diam. rod # Austenite grains elongated in rolling direction # Chem.: .02C 25.0Cr 7.0Ni 3.8Mo 0.27N # HeatTreat: Sandvik: Solution anneal:Slow heating up to 1000C # HeatTreat: Annealing at 1050-1125C, followed by quenching. # Ref.: J.Polak, M.Petrenec, T.Kruml, "Cyclic plastic response # Ref.: and fatigue life in superduplex 2507 stainless steel", # Ref.: Int.J.Fat. V32 2010 pp279-287 # Specimens: from 30mm diam. rod, GaugeLength 12mm 8mm diam. # Extensometer 12mm, tests in load control and some in # strain control + plastic strain limits. # Data taken from graphs, may contain errors # Data computed here from graphs of S-N, PlsStr-N, and S-PlsStr. #FileType= strain_life #DataType= raw #TIMEcol= 0 #Name= SupDuplex2507 #Name= 25Cr7Ni4Mo #Name= Stainless #Stress_units= mpa #Strain_units= strain #Properties not reported in paper. #Below are taken from Sandvik data sheets #E= 200000 mpa #Sy= 550 #minimum= 550 #Su= 845 #Range 760-930 #%Elongation= 25 % minimum #BHN= 260 #Sadvik data sheets #StrAmp 2Nf StsAmp So PlsStrAmp Emod 0.00593 12320 591 0 0.00297 200000 0.00515 18470 575 0 0.00227 200000 0.00442 30553 559 0 0.00163 200000 0.00403 47463 544 0 0.00130 200000 0.00363 55787 530 0 0.00098 200000 0.00351 81401 515 0 0.00094 200000 0.00324 115980 500 0 0.00074 200000 0.00304 164860 485 0 0.00061 200000 0.00285 307310 470 0 0.00050 200000 0.00266 365350 455 0 0.00039 200000 0.00251 454860 440 0 0.00031 200000 0.00227 10286200 425 0 0.00015 200000 #runout 0.00219 4955000 410 0 0.00014 200000 0.00209 1586300 395 0 0.00012 200000 # Above were tested in stress control # Below in Strain control with plastic strain limits 0.01350 1852 677 0 0.01012 200000 0.00809 3959 613 0 0.00503 200000 0.00483 20293 567 0 0.00199 200000 0.00364 42167 527 0 0.00100 200000 0.00289 163990 476 0 0.00051 200000 0.00228 669020 415 0 0.00020 200000 0.00220 2335300 409 0 0.00015 200000 0.00215 10006400 410 0 0.00010 200000 #runout 0.00192 10037600 375 0 0.00005 200000 #runout #0.00162 10037900 320 0 0.00002 200000 #runout too low #0.00138 10002200 275 0 0.00001 200000 #runout too low # #