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Automotive Grey Cast Iron vs. C81400 Copper

Automotive grey cast iron belongs to the iron alloys classification, while C81400 copper belongs to the copper alloys. There are 27 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 grey cast iron and the bottom bar is C81400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
120
Elongation at Break, % 9.6 to 14
11
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 69 to 70
41
Tensile Strength: Ultimate (UTS), MPa 140 to 290
370
Tensile Strength: Yield (Proof), MPa 94 to 200
250

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
1070
Specific Heat Capacity, J/kg-K 490
390
Thermal Conductivity, W/m-K 41 to 43
260
Thermal Expansion, µm/m-K 12 to 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
60
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
61

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
33
Density, g/cm3 7.5 to 7.6
8.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
2.8
Embodied Energy, MJ/kg 21 to 24
45
Embodied Water, L/kg 44 to 51
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
36
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
260
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 5.2 to 11
11
Strength to Weight: Bending, points 8.0 to 13
13
Thermal Diffusivity, mm2/s 11 to 12
75
Thermal Shock Resistance, points 4.2 to 8.6
13