How to Calculate Hardness of Material given CSI?
Hardness of Material given CSI calculator uses Hardness Figure = ((20*Composite Sleeper Index)-Strength Figure)/10 to calculate the Hardness Figure, Hardness of Material given CSI is figure for general hardness for both green and dry timber at 12 per cent moisture content. Hardness Figure is denoted by H symbol.
How to calculate Hardness of Material given CSI using this online calculator? To use this online calculator for Hardness of Material given CSI, enter Composite Sleeper Index (CSI) & Strength Figure (S) and hit the calculate button. Here is how the Hardness of Material given CSI calculation can be explained with given input values -> 1446 = ((20*783)-1200)/10.