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238.0 Aluminum vs. C99700 Brass

238.0 aluminum belongs to the aluminum alloys classification, while C99700 brass 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. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
120
Elongation at Break, % 1.5
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
46
Tensile Strength: Ultimate (UTS), MPa 210
380
Tensile Strength: Yield (Proof), MPa 170
170

Thermal Properties

Latent Heat of Fusion, J/g 430
200
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 600
900
Melting Onset (Solidus), °C 510
880
Specific Heat Capacity, J/kg-K 840
410
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 67
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 3.4
8.1
Embodied Carbon, kg CO2/kg material 7.4
3.3
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 1040
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
78
Resilience: Unit (Modulus of Resilience), kJ/m3 180
120
Stiffness to Weight: Axial, points 12
8.3
Stiffness to Weight: Bending, points 42
20
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 23
14
Thermal Shock Resistance, points 9.1
11

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0.5 to 3.0
Copper (Cu), % 9.5 to 10.5
54 to 65.5
Iron (Fe), % 1.0 to 1.5
0 to 1.0
Lead (Pb), % 0
0 to 2.0
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0
4.0 to 6.0
Silicon (Si), % 3.6 to 4.4
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 1.0 to 1.5
19 to 25
Residuals, % 0
0 to 0.3