ASTM A148 Cast Steel vs. Ductile Cast Iron
Both ASTM A148 cast steel and ductile cast iron are iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is ASTM A148 cast steel and the bottom bar is ductile cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 190 to 390 | |
160 to 310 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
170 to 180 |
Elongation at Break, % | 5.7 to 25 | |
2.1 to 20 |
Poisson's Ratio | 0.29 | |
0.28 to 0.31 |
Shear Modulus, GPa | 73 | |
64 to 70 |
Tensile Strength: Ultimate (UTS), MPa | 630 to 1300 | |
460 to 920 |
Tensile Strength: Yield (Proof), MPa | 390 to 1160 | |
310 to 670 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
270 |
Maximum Temperature: Mechanical, °C | 400 to 430 | |
290 |
Melting Completion (Liquidus), °C | 1460 | |
1160 |
Melting Onset (Solidus), °C | 1420 | |
1120 |
Specific Heat Capacity, J/kg-K | 470 | |
490 |
Thermal Conductivity, W/m-K | 37 to 47 | |
31 to 36 |
Thermal Expansion, µm/m-K | 13 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 to 7.5 | |
7.4 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 to 8.6 | |
8.8 to 9.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.3 to 3.3 | |
1.9 |
Density, g/cm3 | 7.8 | |
7.1 to 7.5 |
Embodied Carbon, kg CO2/kg material | 1.5 to 1.7 | |
1.5 |
Embodied Energy, MJ/kg | 20 to 22 | |
21 |
Embodied Water, L/kg | 48 to 53 | |
43 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 150 | |
17 to 80 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 3570 | |
280 to 1330 |
Stiffness to Weight: Axial, points | 13 | |
12 to 14 |
Stiffness to Weight: Bending, points | 24 | |
24 to 26 |
Strength to Weight: Axial, points | 22 to 46 | |
17 to 35 |
Strength to Weight: Bending, points | 21 to 34 | |
18 to 29 |
Thermal Diffusivity, mm2/s | 9.9 to 13 | |
8.9 to 10 |
Thermal Shock Resistance, points | 18 to 38 | |
17 to 35 |