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Austempered Cast Iron vs. C69430 Brass

Austempered cast iron belongs to the iron alloys classification, while C69430 brass belongs to the copper 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 austempered cast iron and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Elongation at Break, % 1.1 to 13
17
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 62 to 69
42
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
570
Tensile Strength: Yield (Proof), MPa 560 to 1460
280

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1380
920
Melting Onset (Solidus), °C 1340
820
Specific Heat Capacity, J/kg-K 490
410
Thermal Conductivity, W/m-K 42
26
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
27
Density, g/cm3 7.5
8.3
Embodied Carbon, kg CO2/kg material 1.8
2.7
Embodied Energy, MJ/kg 25
44
Embodied Water, L/kg 48
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
80
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
340
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 32 to 66
19
Strength to Weight: Bending, points 27 to 44
18
Thermal Diffusivity, mm2/s 11
7.7
Thermal Shock Resistance, points 25 to 53
20

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0.030 to 0.060
Carbon (C), % 3.4 to 3.8
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.8
80 to 83
Iron (Fe), % 89.6 to 94
0 to 0.2
Lead (Pb), % 0
0 to 0.3
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
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
3.5 to 4.5
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0 to 0.020
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5