The figures in this SAE Information Report illustrate the principle that, regardless of composition, steels of the same cross sectional hardness produced by tempering after through hardening, will have approximately the same longitudinal tensile strength at room temperature.
SAE J413-2011 Referenced Document
SAE J1099-2002 Technical Report on Low Cycle Fatigue Properties Ferrous and Non-Ferrous of Materials
SAE J406-2009 Methods of Determining Hardenability of Steels
SAE J413-2011 history
2011SAE J413-2011 Mechanical Properties of Heat Treated Wrought Steels
2002SAE J413-2002 Mechanical Properties of Heat Treated Wrought Steels