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Automotive Grey Cast Iron vs. C86800 Bronze

Automotive grey cast iron belongs to the iron alloys classification, while C86800 bronze belongs to the copper alloys. There are 25 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 C86800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Elongation at Break, % 9.6 to 14
22
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 69 to 70
42
Tensile Strength: Ultimate (UTS), MPa 140 to 290
570
Tensile Strength: Yield (Proof), MPa 94 to 200
260

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
180
Melting Completion (Liquidus), °C 1380 to 1390
900
Melting Onset (Solidus), °C 1340 to 1350
880
Specific Heat Capacity, J/kg-K 490
400
Thermal Expansion, µm/m-K 12 to 14
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
10

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
24
Density, g/cm3 7.5 to 7.6
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
3.0
Embodied Energy, MJ/kg 21 to 24
51
Embodied Water, L/kg 44 to 51
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
100
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
310
Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 5.2 to 11
20
Strength to Weight: Bending, points 8.0 to 13
19
Thermal Shock Resistance, points 4.2 to 8.6
18