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Automotive Grey Cast Iron vs. C67400 Bronze

Automotive grey cast iron belongs to the iron alloys classification, while C67400 bronze belongs to the copper alloys. There are 27 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 automotive grey cast iron and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Elongation at Break, % 9.6 to 14
22 to 28
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 69 to 70
41
Tensile Strength: Ultimate (UTS), MPa 140 to 290
480 to 610
Tensile Strength: Yield (Proof), MPa 94 to 200
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
190
Melting Completion (Liquidus), °C 1380 to 1390
890
Melting Onset (Solidus), °C 1340 to 1350
870
Specific Heat Capacity, J/kg-K 490
400
Thermal Conductivity, W/m-K 41 to 43
100
Thermal Expansion, µm/m-K 12 to 14
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
23
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
26

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
23
Density, g/cm3 7.5 to 7.6
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
2.8
Embodied Energy, MJ/kg 21 to 24
48
Embodied Water, L/kg 44 to 51
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
300 to 660
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 5.2 to 11
17 to 22
Strength to Weight: Bending, points 8.0 to 13
17 to 20
Thermal Diffusivity, mm2/s 11 to 12
32
Thermal Shock Resistance, points 4.2 to 8.6
16 to 20