Physical properties of iron at room temperature
| |
GRAY
IRON |
DUCTILE
IRON |
LOW
CARBON
STEEL CASTING |
LOW
ALLOY
STEEL
CASTING |
| 1 |
Density
(lbs/in3) |
0.26 |
0.26 |
0.28 |
0.28 |
| 2 |
Poisson's ratio
[ט] |
0.28 |
0.28 |
0.3 |
0.3 |
| 3 |
Modulus of elasticity
(Tension) (psi) [E] |
13000000 |
26000000 |
30000000 |
30000000 |
| 4 |
Modulus of rigidity
(Shearing) (psi) [G] |
5800000 |
9800000 |
11500000 |
11500000 |
| 5 |
Thermal conductivity
(BTU/Hr/ft2/inch/°F) [k] (Cu=2700) |
325 |
250 |
350 |
225 |
| 6 |
Thermal expansion coefficient
(/°F) [a] |
5.8 X 10-6 |
6.5 X 10-6 |
6.5 X 10-6 |
6.7 X 10-6 |
| 7 |
Damping capacity |
40 to 125 |
3 to 10 |
1 to 2 |
1 to 2 |
| 9 |
Electrical resistivity
(µ Ohm . Cm) [ρ] (Cu =1.67) |
80 to 100 |
40 to 60 |
12 |
15 |
| 10 |
Magnetic properties
(Kilogauss/Oersted@100 Oersteds |
10 |
14 |
16 |
16 |
| 11 |
Pattern-making shrinkage (%) |
0.83 |
1.04 |
1.56 |
2.08 |
|