This section is from the book "Safe Building", by Louis De Coppet Berg. Also available from Amazon: Code Check: An Illustrated Guide to Building a Safe House.
Combined Carbon. | Graphitic Carbon. | Silicon. | ||
Greatest softness..... | 0,15 | 3,1 | 2,5 | |
" | hardness... | - | - | under 0,8 |
" | general strength.... | 0,50 | 2,8 | 1,42 |
" | stiffiness...... | - | - | 1,0 |
" | tensile strength.... | - | - | 1,8 |
" | crushing strength... | over 1,0 | under 2,6 | about 0,8 |
 
Continue to: