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C38000 Brass vs. Austempered Cast Iron

C38000 brass 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 (3, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
180
Elongation at Break, % 17
1.1 to 13
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
62 to 69
Tensile Strength: Ultimate (UTS), MPa 380
860 to 1800
Tensile Strength: Yield (Proof), MPa 120
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Melting Completion (Liquidus), °C 800
1380
Melting Onset (Solidus), °C 760
1340
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 110
42
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.9
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 2.7
1.8
Embodied Energy, MJ/kg 46
25
Embodied Water, L/kg 330
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 74
880 to 3970
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13
32 to 66
Strength to Weight: Bending, points 14
27 to 44
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 13
25 to 53

Alloy Composition

Aluminum (Al), % 0 to 0.5
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), % 55 to 60
0 to 0.8
Iron (Fe), % 0 to 0.35
89.6 to 94
Lead (Pb), % 1.5 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
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 to 0.3
0 to 0.020
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 35.9 to 43.5
0
Residuals, % 0 to 0.5
0