| Stonecast in comparison with cast iron and steel
| characteristic values |
unit
|
stone cast
|
cast iron
|
steel
|
|
|
|
|
|
| density |
kg/ dm3
|
2,3
|
7,15
|
7,85
|
| E-Modul |
kN/mm3
|
30 - 40
|
80 - 140
|
210
|
| tensile strength |
N/mm2
|
10 - 15
|
150 - 400
|
400 - 1600
|
| compressive strength |
N/mm2
|
110 - 125
|
600 - 1000
|
250 - 1200
|
| bending strength |
N/mm2
|
25 - 35
|
250 - 490
|
-
|
damping
(log. dekrement) |
|
0,02 - 0,03
|
0,003
|
0,002
|
| thermal conductivity |
W/Kºm
|
1,3 - 2
|
50
|
50
|
spezific
effective heat capacity |
KJ/kgºK
|
1
|
0,5
|
0,5
|
thermic
co-efficient of expansion |
|
14 - 16
|
11
|
12
|
|
|