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C31400 Bronze vs. Grey Cast Iron

C31400 bronze belongs to the copper alloys classification, while grey cast iron belongs to the iron alloys. There are 28 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 C31400 bronze and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180
Elongation at Break, % 6.8 to 29
9.6
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
69
Shear Strength, MPa 180 to 240
180 to 610
Tensile Strength: Ultimate (UTS), MPa 270 to 420
160 to 450
Tensile Strength: Yield (Proof), MPa 78 to 310
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 200
280
Melting Completion (Liquidus), °C 1040
1380
Melting Onset (Solidus), °C 1010
1180
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 180
46
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 43
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 29
1.9
Density, g/cm3 8.8
7.5
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 42
21
Embodied Water, L/kg 310
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
27 to 240
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.7 to 13
5.8 to 17
Strength to Weight: Bending, points 11 to 14
8.7 to 17
Thermal Diffusivity, mm2/s 54
13
Thermal Shock Resistance, points 9.6 to 15
6.0 to 17

Alloy Composition

Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 87.5 to 90.5
0
Iron (Fe), % 0 to 0.1
92.1 to 93.9
Lead (Pb), % 1.3 to 2.5
0
Manganese (Mn), % 0
0.5 to 0.7
Nickel (Ni), % 0 to 0.7
0
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 0
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Zinc (Zn), % 5.8 to 11.2
0
Residuals, % 0 to 0.4
0