DÖKME DEMİRİN ODA SICAKLIĞINDA FİZİKSEL ÖZELLİKLERİ
Gray iron (Pik Döküm) | Ductile iron (Sfero Döküm) | Low carbon steel castinhg (Düşük Karbonlu Çelik Döküm) | Low Alloy steel casting (Düşük Alaşımlı Çelik Döküm) | |
Density (lbs/in³) | 0.26 | 0.26 | 0.28 | 0.28 |
Poisson's ratio[ט] | 0.28 | 0.28 | 0.3 | 0.3 |
Modulus of elasticity(Tension) (Psi) [E] | 13000000 | 26000000 | 30000000 | 30000000 |
Modulus of rigidity (Shearing) (Psi) [G] | 5800000 | 9800000 | 11500000 | 11500000 |
Thermal conductivity (BTU/Hr/ft²/inch/°F) [k](Cu=2700 | 325 | 250 | 350 | 225 |
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 |
Damping capacity | 40 to 125 | 3 to 10 | 1 to 2 | 1 to 2 |
Electrical resistivity(µ Ohm . Cm) [ρ] (Cu =1.67) | 80 to 100 | 40 to 60 | 12 | 15 |
Magnetic properties (KiloGauss/Oersteds@100 Oersteds | 10 | 14 | 16 | 16 |
Pattern-making shrinkage (%) | 0.83 | 1.04 | 1.56 | 2.08 |