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6101A Aluminum vs. C68300 Brass

6101A aluminum belongs to the aluminum alloys classification, while C68300 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 6101A aluminum and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
100
Elongation at Break, % 11
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Shear Strength, MPa 130
260
Tensile Strength: Ultimate (UTS), MPa 220
430
Tensile Strength: Yield (Proof), MPa 190
260

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 640
900
Melting Onset (Solidus), °C 630
890
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 200
120
Thermal Expansion, µm/m-K 23
20

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1190
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
56
Resilience: Unit (Modulus of Resilience), kJ/m3 280
330
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 51
20
Strength to Weight: Axial, points 23
15
Strength to Weight: Bending, points 30
16
Thermal Diffusivity, mm2/s 84
38
Thermal Shock Resistance, points 10
14

Alloy Composition

Aluminum (Al), % 97.9 to 99.3
0
Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 0 to 0.050
59 to 63
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 0.4 to 0.9
0
Silicon (Si), % 0.3 to 0.7
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 0
34.2 to 40.4
Residuals, % 0
0 to 0.5