Hardenability curves

The underlying models are valid for a limited range of chemical composition, which is displayed with. Within the validity periods, the user can generate as many hardenability curves as they like and export them from the system - the standard display corresponds to the mean value analysis The hardenability calculation is part of the StahlDat SX standard version.

Fig. 1: Hardenability curve

Calculation of hardenability

Calculate forehead quenching hardness (Jominy test) from the chemical analysis

All Steel Iron Test Sheet 1664 models: 2013 The Steel Iron Test Sheet SEP1664-2013 provides regression models for the calculation of hardenability for the following material groups:

• Cr-tempered steels
• CrMo tempered steels
• MnCr insert steels
• MnCr hardened steels higher strength
• MnCrB tempered steels
• MnCrB insert steels
• CrNi insert steels
• CrNiMo Case Steels (2003)
• MoCr Case Steels (2012)
• CrV tempering steel
• C-tempered steels
• CrB tempered steels
• AFP steels
• Chain steels