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Austempered Cast Iron vs. C54400 Bronze

Austempered cast iron belongs to the iron alloys classification, while C54400 bronze belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is C54400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 62 to 69
40
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
330 to 720

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Melting Completion (Liquidus), °C 1380
1000
Melting Onset (Solidus), °C 1340
930
Specific Heat Capacity, J/kg-K 490
370
Thermal Conductivity, W/m-K 42
86
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
31
Density, g/cm3 7.5
8.9
Embodied Carbon, kg CO2/kg material 1.8
2.9
Embodied Energy, MJ/kg 25
48
Embodied Water, L/kg 48
340

Common Calculations

Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 32 to 66
10 to 22
Strength to Weight: Bending, points 27 to 44
12 to 20
Thermal Diffusivity, mm2/s 11
26
Thermal Shock Resistance, points 25 to 53
12 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.8
85.4 to 91.5
Iron (Fe), % 89.6 to 94
0 to 0.1
Lead (Pb), % 0
3.5 to 4.5
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0
Molybdenum (Mo), % 0 to 0.3
0
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.040
0.010 to 0.5
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0 to 0.020
3.5 to 4.5
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
1.5 to 4.5
Residuals, % 0
0 to 0.5