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Automotive Malleable Cast Iron vs. ASTM A204 Steel

Both automotive malleable cast iron and ASTM A204 steel are iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 290
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.0 to 10
18 to 22
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 70
73
Tensile Strength: Ultimate (UTS), MPa 350 to 720
520 to 590
Tensile Strength: Yield (Proof), MPa 220 to 590
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1420 to 1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
52
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.4
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 45
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
220 to 290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 13 to 26
18 to 21
Strength to Weight: Bending, points 14 to 24
18 to 20
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 9.9 to 21
15 to 17