#
# # Merged SAE 4140 Bhn 350 to 394 # aisiIt064sae4140_Bhn381.html aisiIt068sae4140_Bhn353.html # aisiIt093sae4140_Bhn353.html aisiIt069sae4140_Bhn371.html # aisiIt067sae4140_Bhn381.html aisiIt097sae4140_Bhn385.html # aisiIt066sae4140_Bhn390.html aisiIt080sae4140_Bhn394.html #FileType= strain_life #DataType= raw #Name= SAE4140 #Name= AisiMerged #Name= Bhn350-394 #Stress_units= MPa #Strain_units= strain #Su= 1416 (average) Range from 1239 to 1537mpa #Sy= 1295 (average) Rg: 1167 to 1363 #E= 202000 (average) #BHN= 374 (average) ##Name= AisiIt_64 ##Sy= 1297.0 ##Su= 1390. ##E= 197000 ##BHN= 381 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0102 1720 904 0.0 0.00562 198000 #None 0.0104 1860 887 0.0 0.00586 195000 #None 0.0102 2544 873 0.0 0.00580 195000 #None 0.0081 4560 825 0.0 0.00391 200000 #None 0.0060 6320 740 0.0 0.00220 196000 #None 0.0060 9378 762 0.0 0.00211 197000 #None 0.0062 12960 773 0.0 0.00222 197000 #None 0.0049 25400 778 0.0 0.00090 198000 #None 0.0049 31320 768 0.0 0.00095 197000 #None 0.0049 31836 776 0.0 0.00092 197000 #None 0.0040 60000 729 0.0 0.00033 197000 #None 0.0039 87240 730 0.0 0.00024 198000 #None 0.0037 108428 667 0.0 0.00027 197000 #None 0.0040 156916 689 0.0 0.00051 197000 #None 0.0035 236660 687 0.0 0.00000 195000 #None 0.0036 247460 693 0.0 0.00012 200000 #None 0.0040 266672 710 0.0 0.00036 197000 #None 0.0034 297632 650 0.0 0.00000 197000 #None 0.0032 10000000 625 0.0 0.00000 197000 #Runout 0.0035 10000000 659 0.0 0.00000 197000 #Runout 0.0032 10000000 637 0.0 0.00000 195000 #Runout 0.0032 10000000 652 0.0 0.00000 198000 #Runout ##Name= SAE4140 ##Name= AisiIt_68 ##Sy= 1255.1 ##Su= 1355.1 ##E= 199000 ##BHN= 353 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0100 1444 909 0.0 0.00539 198000 #None 0.0099 1684 904 0.0 0.00536 200000 #None 0.0099 1724 887 0.0 0.00542 201000 #None 0.0062 4660 795 0.0 0.00222 196000 #None 0.0062 7740 768 0.0 0.00230 0000 #None 0.0063 8752 784 0.0 0.00230 197000 #None 0.0050 12040 774 0.0 0.00109 0000 #None 0.0050 17220 776 0.0 0.00107 199000 #None 0.0050 19720 774 0.0 0.00108 203000 #None 0.0040 82480 778 0.0 0.00006 198000 #None 0.0040 97100 780 0.0 0.00009 193000 #None 0.0040 114316 776 0.0 0.00011 199000 #None 0.0035 366674 653 0.0 0.00000 0000 #None 0.0035 2744924 705 0.0 0.00000 203000 #None 0.0032 10000000 627 0.0 0.00000 195000 #Runout 0.0035 10000000 704 0.0 0.00000 0000 #Runout 0.0032 10000000 621 0.0 0.00000 0000 #Runout 0.0032 10000000 642 0.0 0.00000 200000 #Runout ##SAE4140 InducHard to Rc38, 70%Bainite 30% Ferrite ##Name= SAE4140 ##Name= AisiIt_93 ##Name= Induc.Hardened ##Sy= 1363.0 ##Su= 1514.0 ##E= 201400 ##BHN= 353 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0099 1834 1014 0.0 0.00490 0000 #None 0.0099 2588 1000 0.0 0.00497 0000 #None 0.0099 3142 993 0.0 0.00500 0000 #None 0.0080 5562 942 0.0 0.00330 0000 #None Typo in PlStr Corrected 0.0080 6140 931 0.0 0.00360 0000 #None 0.0080 6270 950 0.0 0.00325 0000 #None 0.0070 7812 909 0.0 0.00247 0000 #None 0.0070 8134 923 0.0 0.00239 0000 #None 0.0060 8166 901 0.0 0.00157 0000 #None 0.0060 12872 903 0.0 0.00156 0000 #None 0.0061 13510 897 0.0 0.00163 0000 #None 0.0050 14070 907 0.0 0.00051 0000 #None 0.0050 15328 924 0.0 0.00041 0000 #None 0.0050 36012 892 0.0 0.00055 0000 #None 0.0040 54960 775 0.0 0.00000 0000 #None 0.0040 66680 780 0.0 0.00000 0000 #None 0.0040 72376 783 0.0 0.00000 0000 #None Typo corrected strainAmpl. 0.0031 329614 599 0.0 0.00000 0000 #None 0.0031 5336566 603 0.0 0.00000 0000 #None 0.0035 8962288 679 0.0 0.00000 0000 #None Typo corr. StsAmpl. 0.0027 10000000 532 0.0 0.00000 0000 #Runout 0.0030 10000000 581 0.0 0.00000 0000 #Runout 0.0027 10000000 586 0.0 0.00000 0000 #Runout 0.0028 10000000 599 0.0 0.00000 0000 #Runout ##SAE4140 Q+T from 57mm hotrolled bar. 100%Matensite Rc=40 ##Name= SAE4140 ##Name= AisiIt_69 ##Sy= 1341.0 ##Su= 1474.2 ##E= 201000 ##BHN= 371 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0099 1224 920 0.0 0.00528 0000 #None 0.0101 1244 982 0.0 0.00519 201000 #None 0.0099 1444 970 0.0 0.00512 202000 #None 0.0061 5940 851 0.0 0.00188 204000 #None 0.0064 7220 812 0.0 0.00234 0000 #None 0.0063 7360 840 0.0 0.00208 196000 #None 0.0050 14220 892 0.0 0.00055 207000 #None 0.0050 16520 888 0.0 0.00057 204000 #None 0.0050 25284 840 0.0 0.00081 186000 #None 0.0038 81004 735 0.0 0.00000 0000 #None 0.0039 88620 802 0.0 0.00000 202000 #None 0.0040 90700 830 0.0 0.00000 205000 #None 0.0040 93460 828 0.0 0.00000 0000 #None 0.0035 116244 701 0.0 0.00000 203000 #None 0.0032 128000 662 0.0 0.00000 207000 #None 0.0037 131492 758 0.0 0.00000 0000 #None 0.0032 149140 642 0.0 0.00000 199000 #None 0.0038 172620 761 0.0 0.00000 204000 #None 0.0030 10000000 611 0.0 0.00000 203000 #Runout 0.0032 10000000 658 0.0 0.00000 203000 #Runout 0.0030 10000000 583 0.0 0.00000 196000 #Runout 0.0030 10000000 621 0.0 0.00000 206000 #Runout ##SAE4140 Quenched,Temp.Rc=41, 100%Martensite, TypeD=1.0_Inclusion Rating ##UoWaterloo tests. Ingot Cast HotRollBarStock=57mm ##Name= SAE4140 ##Name= AisiIt_67 ##Sy= 1314.0 ##Su= 1445.8 ##E= 205000 ##BHN= 381 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0102 1244 982 0.0 0.00536 203000 #None 0.0102 2484 982 0.0 0.00540 203000 #None 0.0100 2624 893 0.0 0.00567 204000 #None 0.0061 7982 817 0.0 0.00211 204000 #None 0.0061 8260 842 0.0 0.00201 0000 #None 0.0061 8440 856 0.0 0.00192 207000 #None 0.0050 28220 815 0.0 0.00100 0000 #None 0.0050 33340 818 0.0 0.00099 202000 #None 0.0050 36238 831 0.0 0.00092 208000 #None 0.0042 68680 831 0.0 0.00018 0000 #None 0.0042 99880 812 0.0 0.00026 0000 #None 0.0040 125444 811 0.0 0.00000 206000 #None 0.0042 149500 815 0.0 0.00026 204000 #None 0.0040 397680 803 0.0 0.00000 204000 #None 0.0035 1244762 706 0.0 0.00000 0000 #None 0.0030 10000000 610 0.0 0.00000 202000 #Runout 0.0040 10000000 791 0.0 0.00000 218000 #Runout 0.0035 10000000 705 0.0 0.00000 201000 #Runout 0.0035 10000000 710 0.0 0.00000 208000 #Runout 0.0030 10000000 617 0.0 0.00000 0000 #Runout 0.0030 10000000 604 0.0 0.00000 201000 #Runout ##SAE4140 Rc41.5 Induction Hardened from ConCast 30mm bar ##Elec. Furnace, Final 15%Bainite, 85%Martensite ##Name= SAE4140 ##Name= AisiIt_97 ##Sy= 1167.1 ##Su= 1239.5 ##E= 206500 ## ? #BHN= 416.7 reported? probably wrong. ##Hardness, Rockwell C= 41.5 ##BHN= 385 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0198 386 1093 -19.3 0.01450 209000 #IGL 0.0198 446 1053 -16.2 0.01471 210000 #IGL 0.0198 560 1037 -11.8 0.01482 204000 #IGL 0.0100 2418 931 -10.9 0.00550 212000 #IGL 0.0100 2558 931 -10.9 0.00544 209000 #IGL 0.0100 2666 912 -11.4 0.00557 209000 #IGL 0.0050 9138 830 2.8 0.00096 221000 #IGL 0.0049 13894 784 41.1 0.00110 209000 #IGL 0.0050 20422 796 -20.0 0.00113 205000 #IGL 0.0035 107678 715 9.3 0.00000 204000 #None 0.0035 144708 716 2.5 0.00000 0000 #IGL 0.0035 152582 736 113.3 0.00000 210000 #IGL 0.0032 176084 675 43.5 0.00000 207000 #IGL 0.0033 179576 676 0.0 0.00000 0000 #IGL 0.0033 223248 676 0.0 0.00000 0000 #IGL 0.0030 10000000 623 0.0 0.00000 0000 #Runout 0.0030 10000000 623 0.0 0.00000 206000 #Runout 0.0030 10000000 623 0.0 0.00000 0000 #Runout ##SAE4140 HRc=42 Q+T, Source: ConCast ColdSized 32mm bar,Elec. Furnace ##Name= SAE4140 ##Name= AisiIt_66 ##Sy= 1330.0 ##Su= 1537.0 ##E= 204000 ##BHN= 390 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0112 1500 1034 0.0 0.00614 0000 #None 0.0100 1900 977 0.0 0.00518 205000 #None 0.0101 2000 954 0.0 0.00538 203000 #None 0.0062 7266 872 0.0 0.00191 203000 #None 0.0050 25580 856 0.0 0.00076 202000 #None 0.0050 29500 802 0.0 0.00102 201000 #None 0.0050 30388 836 0.0 0.00087 202000 #None 0.0040 76564 777 0.0 0.00000 203000 #None 0.0040 87960 795 0.0 0.00000 207000 #None 0.0040 123460 812 0.0 0.00000 207000 #None 0.0037 269776 755 0.0 0.00000 208000 #None 0.0037 306800 760 0.0 0.00000 198000 #None 0.0037 479232 749 0.0 0.00000 201000 #None 0.0035 527436 694 0.0 0.00000 204000 #None 0.0032 10000000 643 0.0 0.00000 203000 #Runout 0.0035 10000000 712 0.0 0.00000 205000 #Runout 0.0035 10000000 692 0.0 0.00000 203000 #Runout 0.0032 10000000 648 0.0 0.00000 208000 #Runout 0.0032 10000000 654 0.0 0.00000 206000 #Runout ##SAE4140 Forged the Quenched from 1550F into 150F Oil, Temp 750F ##Source: ElecFurnace, ConCast, Normalized 1650, Forged 2150 82% REDUC. ##Name= SAE4140 ##Name= AisiIt_80 ##Sy= 1290.7 ##Su= 1380.4 ##E= 206400 ##BHN= 394 ##StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0199 166 1197 -19.8 0.01406 210000 #IGL 0.0199 200 1184 -19.0 0.01414 210000 #IGL 0.0100 700 1057 -16.2 0.00488 213000 #IGL 0.0100 1490 988 -12.3 0.00518 214000 #IGL 0.0100 1732 978 -11.2 0.00521 207000 #IGL 0.0064 4564 894 -1.7 0.00211 210000 #IGL 0.0050 11054 865 46.8 0.00080 207000 #IGL 0.0049 12850 840 27.0 0.00087 210000 #IGL 0.0050 16194 858 -50.1 0.00083 207000 #IGL 0.0038 52070 776 0.0 0.00000 0000 #IGL 0.0038 58158 776 0.0 0.00000 0000 #IGL 0.0038 64596 776 0.0 0.00000 208000 #IGL 0.0033 100142 672 0.0 0.00000 0000 #IGL 0.0033 116410 672 0.0 0.00000 0000 #IGL 0.0033 193972 672 0.0 0.00000 0000 #IGL 0.0028 2808070 569 0.0 0.00000 0000 #IGL 0.0028 10000000 563 0.0 0.00000 0000 #Runout # #