# NOTE!! Rotating Bending Tests !! # 17-4PH StainlessSteel H-900 R= -1 # H-900 percip. hardened 1hr at 900F HRc= 45 # Spec. from round 0.50inch bar stock, machined 0.020" # and then hardened. # Chem.: 16.5Cr% 4.2Ni 4.2Cu .045C .33Mn .18P .010 # Chem.: .20Cb .02Ta .59Si .27Co # Ref.: Boeing Co., "Fatigue Properties of 17-4PH and 15-5PH # Ref.: Steel in the H-900 and H-1050 Condition", Aug. 1968 # Ref.: Web document AD0691794.pdf # Rotating Bending R.R.Moore 0.25inch diam samples. #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= 17-4PH_H900 #Name= StainlessSteel #Stress_units= mpa #Strain_units= strain #Sy= 1103 mpa 160 ksi longitudinal #Su= 1343 mpa 194.8 ksi #E= 200000 assumed #%Elongation= 17 over 2" long., transv= 4.5 #%RA= 53.5 longit. #BHN= 421 #Tot Strain 2Nf Stress Mean Plastic Strain Initial ## Amp Amp Stress Amp Elastic Mod 0.00448 164000 896 0 0 200000 0.00414 368000 827 0 0 200000 0.00379 528000 758 0 0 200000 0.00362 1590000 724 0 0 200000 0.00362 3244000 724 0 0 200000 0.00345 3904000 690 0 0 200000 0.00338 7928000 676 0 0 200000 0.00336 6126000 672 0 0 200000 0.00336 8504000 672 0 0 200000 0.00336 6196000 672 0 0 200000 0.00331 3960000 662 0 0 200000 0.00331 76000000 662 0 0 200000 #runout 0.00328 23334000 655 0 0 200000 #runout 0.00328 24104000 655 0 0 200000 #runout # #