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A356.0 Aluminum vs. C69300 Brass

A356.0 aluminum belongs to the aluminum alloys classification, while C69300 brass belongs to the copper alloys. There are 28 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 A356.0 aluminum and the bottom bar is C69300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.0 to 6.0
8.5 to 15
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 160 to 270
550 to 630
Tensile Strength: Yield (Proof), MPa 83 to 200
300 to 390

Thermal Properties

Latent Heat of Fusion, J/g 500
240
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 610
880
Melting Onset (Solidus), °C 570
860
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 150
38
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.6
8.2
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 15
47 to 70
Resilience: Unit (Modulus of Resilience), kJ/m3 49 to 300
400 to 700
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 53
19
Strength to Weight: Axial, points 17 to 29
19 to 21
Strength to Weight: Bending, points 25 to 36
18 to 20
Thermal Diffusivity, mm2/s 64
12
Thermal Shock Resistance, points 7.6 to 13
19 to 22

Alloy Composition

Aluminum (Al), % 91.1 to 93.3
0
Copper (Cu), % 0 to 0.2
73 to 77
Iron (Fe), % 0 to 0.2
0 to 0.1
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0 to 0.1
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0
0.040 to 0.15
Silicon (Si), % 6.5 to 7.5
2.7 to 3.4
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
18.4 to 24.3
Residuals, % 0
0 to 0.5