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Automotive Grey Cast Iron vs. CR012A Copper

Automotive grey cast iron belongs to the iron alloys classification, while CR012A copper belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is CR012A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
120
Elongation at Break, % 9.6 to 14
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 69 to 70
43
Tensile Strength: Ultimate (UTS), MPa 140 to 290
220
Tensile Strength: Yield (Proof), MPa 94 to 200
130

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
210
Melting Completion (Liquidus), °C 1380 to 1390
1090
Melting Onset (Solidus), °C 1340 to 1350
1040
Specific Heat Capacity, J/kg-K 490
390
Thermal Conductivity, W/m-K 41 to 43
390
Thermal Expansion, µm/m-K 12 to 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
100
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
33
Density, g/cm3 7.5 to 7.6
9.0
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
2.7
Embodied Energy, MJ/kg 21 to 24
42
Embodied Water, L/kg 44 to 51
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
29
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
76
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 5.2 to 11
6.8
Strength to Weight: Bending, points 8.0 to 13
9.0
Thermal Diffusivity, mm2/s 11 to 12
110
Thermal Shock Resistance, points 4.2 to 8.6
7.8