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/Oersteds@100 Oersteds | 10 | 14 | 16 | 16 |
| 11 | Pattern-making shrinkage (%) | 0.83 | 1.04 | 1.56 | 2.08 |
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