This conversion is still an estimate because of the difference in the technique. To convert the Lead Crusher Pressure (Cp) to PSI (pound force per square inch)

(Cp x 1.5) - .5 = TSI, TSI X 2240 = PSI

3 Tons per Square Inch (UK, Long)

3 x 1.5 = 4.5, 4.5 - .5 = 4 TSI, 4 x 2240 = 8960psi

Last edited by Drew Hause; 10/01/13 06:54 PM.