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Ductile Cast Iron vs. C94300 Bronze

Ductile cast iron belongs to the iron alloys classification, while C94300 bronze belongs to the copper 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 ductile cast iron and the bottom bar is C94300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
87
Elongation at Break, % 2.1 to 20
9.7
Poisson's Ratio 0.28 to 0.31
0.36
Shear Modulus, GPa 64 to 70
32
Tensile Strength: Ultimate (UTS), MPa 460 to 920
180
Tensile Strength: Yield (Proof), MPa 310 to 670
120

Thermal Properties

Latent Heat of Fusion, J/g 270
150
Maximum Temperature: Mechanical, °C 290
110
Melting Completion (Liquidus), °C 1160
820
Melting Onset (Solidus), °C 1120
760
Specific Heat Capacity, J/kg-K 490
320
Thermal Conductivity, W/m-K 31 to 36
63
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
28
Density, g/cm3 7.1 to 7.5
9.3
Embodied Carbon, kg CO2/kg material 1.5
2.9
Embodied Energy, MJ/kg 21
47
Embodied Water, L/kg 43
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
15
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
77
Stiffness to Weight: Axial, points 12 to 14
5.2
Stiffness to Weight: Bending, points 24 to 26
16
Strength to Weight: Axial, points 17 to 35
5.2
Strength to Weight: Bending, points 18 to 29
7.4
Thermal Diffusivity, mm2/s 8.9 to 10
21
Thermal Shock Resistance, points 17 to 35
7.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Carbon (C), % 3.0 to 3.5
0
Copper (Cu), % 0
67 to 72
Iron (Fe), % 93.7 to 95.5
0 to 0.15
Lead (Pb), % 0
23 to 27
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.080
0 to 1.5
Silicon (Si), % 1.5 to 2.8
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 1.0