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Austempered Cast Iron vs. CC494K Bronze

Austempered cast iron belongs to the iron alloys classification, while CC494K bronze belongs to the copper alloys. There are 26 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 austempered cast iron and the bottom bar is CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 490
67
Elastic (Young's, Tensile) Modulus, GPa 180
100
Elongation at Break, % 1.1 to 13
7.6
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 62 to 69
39
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
210
Tensile Strength: Yield (Proof), MPa 560 to 1460
94

Thermal Properties

Latent Heat of Fusion, J/g 280
180
Melting Completion (Liquidus), °C 1380
970
Melting Onset (Solidus), °C 1340
890
Specific Heat Capacity, J/kg-K 490
360
Thermal Conductivity, W/m-K 42
63
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
31
Density, g/cm3 7.5
9.1
Embodied Carbon, kg CO2/kg material 1.8
3.1
Embodied Energy, MJ/kg 25
50
Embodied Water, L/kg 48
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
13
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
43
Stiffness to Weight: Axial, points 13
6.4
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 32 to 66
6.5
Strength to Weight: Bending, points 27 to 44
8.8
Thermal Diffusivity, mm2/s 11
19
Thermal Shock Resistance, points 25 to 53
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
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
78 to 87
Iron (Fe), % 89.6 to 94
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0 to 0.2
Molybdenum (Mo), % 0 to 0.3
0
Nickel (Ni), % 0 to 2.0
0 to 2.0
Phosphorus (P), % 0 to 0.040
0 to 0.1
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0 to 0.010
Sulfur (S), % 0 to 0.020
0 to 0.1
Tin (Sn), % 0 to 0.020
4.0 to 6.0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
0 to 2.0