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C31400 Bronze vs. Automotive Malleable Cast Iron

C31400 bronze belongs to the copper alloys classification, while automotive malleable cast iron belongs to the iron alloys. There are 27 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 C31400 bronze and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180
Elongation at Break, % 6.8 to 29
1.0 to 10
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
70
Tensile Strength: Ultimate (UTS), MPa 270 to 420
350 to 720
Tensile Strength: Yield (Proof), MPa 78 to 310
220 to 590

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Melting Completion (Liquidus), °C 1040
1410
Melting Onset (Solidus), °C 1010
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 180
41
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 43
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 29
1.9
Density, g/cm3 8.8
7.6
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 42
20
Embodied Water, L/kg 310
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
6.8 to 30
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
130 to 950
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.7 to 13
13 to 26
Strength to Weight: Bending, points 11 to 14
14 to 24
Thermal Diffusivity, mm2/s 54
11
Thermal Shock Resistance, points 9.6 to 15
9.9 to 21

Alloy Composition

Carbon (C), % 0
2.2 to 2.9
Copper (Cu), % 87.5 to 90.5
0
Iron (Fe), % 0 to 0.1
93.6 to 96.7
Lead (Pb), % 1.3 to 2.5
0
Manganese (Mn), % 0
0.15 to 1.3
Nickel (Ni), % 0 to 0.7
0
Phosphorus (P), % 0
0.020 to 0.15
Silicon (Si), % 0
0.9 to 1.9
Sulfur (S), % 0
0.020 to 0.2
Zinc (Zn), % 5.8 to 11.2
0
Residuals, % 0 to 0.4
0