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Austempered Cast Iron vs. C43400 Brass

Austempered cast iron belongs to the iron alloys classification, while C43400 brass belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is C43400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Elongation at Break, % 1.1 to 13
3.0 to 49
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 62 to 69
42
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
310 to 690
Tensile Strength: Yield (Proof), MPa 560 to 1460
110 to 560

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Melting Completion (Liquidus), °C 1380
1020
Melting Onset (Solidus), °C 1340
990
Specific Heat Capacity, J/kg-K 490
380
Thermal Conductivity, W/m-K 42
140
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
28
Density, g/cm3 7.5
8.6
Embodied Carbon, kg CO2/kg material 1.8
2.7
Embodied Energy, MJ/kg 25
44
Embodied Water, L/kg 48
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 95
19 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 3970
57 to 1420
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 25
19
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
41
Thermal Shock Resistance, points 25 to 53
11 to 24

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
84 to 87
Iron (Fe), % 89.6 to 94
0 to 0.050
Lead (Pb), % 0
0 to 0.050
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
0
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0 to 0.020
0.4 to 1.0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
11.4 to 15.6
Residuals, % 0
0 to 0.5