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Ductile Cast Iron vs. CC331G Bronze

Ductile cast iron belongs to the iron alloys classification, while CC331G bronze belongs to the copper alloys. There are 29 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 ductile cast iron and the bottom bar is CC331G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 310
140
Elastic (Young's, Tensile) Modulus, GPa 170 to 180
110
Elongation at Break, % 2.1 to 20
20
Poisson's Ratio 0.28 to 0.31
0.34
Shear Modulus, GPa 64 to 70
43
Tensile Strength: Ultimate (UTS), MPa 460 to 920
620
Tensile Strength: Yield (Proof), MPa 310 to 670
240

Thermal Properties

Latent Heat of Fusion, J/g 270
230
Maximum Temperature: Mechanical, °C 290
220
Melting Completion (Liquidus), °C 1160
1060
Melting Onset (Solidus), °C 1120
1000
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 31 to 36
61
Thermal Expansion, µm/m-K 11
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
14

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
28
Density, g/cm3 7.1 to 7.5
8.3
Embodied Carbon, kg CO2/kg material 1.5
3.2
Embodied Energy, MJ/kg 21
53
Embodied Water, L/kg 43
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
97
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
250
Stiffness to Weight: Axial, points 12 to 14
7.6
Stiffness to Weight: Bending, points 24 to 26
19
Strength to Weight: Axial, points 17 to 35
21
Strength to Weight: Bending, points 18 to 29
19
Thermal Diffusivity, mm2/s 8.9 to 10
17
Thermal Shock Resistance, points 17 to 35
22

Alloy Composition

Aluminum (Al), % 0
8.5 to 10.5
Carbon (C), % 3.0 to 3.5
0
Copper (Cu), % 0
83 to 86.5
Iron (Fe), % 93.7 to 95.5
1.5 to 3.5
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 1.5
Phosphorus (P), % 0 to 0.080
0
Silicon (Si), % 1.5 to 2.8
0 to 0.2
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5