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C31400 Bronze vs. Austempered Cast Iron

C31400 bronze belongs to the copper alloys classification, while austempered cast iron belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C31400 bronze and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180
Elongation at Break, % 6.8 to 29
1.1 to 13
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
62 to 69
Tensile Strength: Ultimate (UTS), MPa 270 to 420
860 to 1800
Tensile Strength: Yield (Proof), MPa 78 to 310
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 200
280
Melting Completion (Liquidus), °C 1040
1380
Melting Onset (Solidus), °C 1010
1340
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 180
42
Thermal Expansion, µm/m-K 18
13

Otherwise Unclassified Properties

Base Metal Price, % relative 29
2.9
Density, g/cm3 8.8
7.5
Embodied Carbon, kg CO2/kg material 2.6
1.8
Embodied Energy, MJ/kg 42
25
Embodied Water, L/kg 310
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
880 to 3970
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.7 to 13
32 to 66
Strength to Weight: Bending, points 11 to 14
27 to 44
Thermal Diffusivity, mm2/s 54
11
Thermal Shock Resistance, points 9.6 to 15
25 to 53

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 0
3.4 to 3.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 87.5 to 90.5
0 to 0.8
Iron (Fe), % 0 to 0.1
89.6 to 94
Lead (Pb), % 1.3 to 2.5
0
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0
0.3 to 0.4
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.7
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0
2.3 to 2.7
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 5.8 to 11.2
0
Residuals, % 0 to 0.4
0