ITAMCO has released another app in its popular series. The method of Jominy hardenability calculation from the chemical Ideal Diameter* (DI) of a steel. DI Calculator includes carbon multiplying factors and improved the correlation of the boron factor with both carbon and alloy content to provide increased accuracy of both the calculated DI and Jominy hardenability curves. Composition ranges are available at the iTunes store. Designed for both the iPhone and iPad, DI Hardenability Calculator costs $4.99. Other apps from ITAMCO include the Metal Weight Calculator, Bolt Hole Circle Calculator, Flow Rate Calculator, iSPC, GearWare and more.