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C69400 Brass vs. EN AC-51400 Aluminum

C69400 brass belongs to the copper alloys classification, while EN AC-51400 aluminum belongs to the aluminum alloys. There are 28 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 C69400 brass and the bottom bar is EN AC-51400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
67
Elongation at Break, % 17
3.4
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
25
Tensile Strength: Ultimate (UTS), MPa 570
190
Tensile Strength: Yield (Proof), MPa 270
120

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 920
640
Melting Onset (Solidus), °C 820
600
Specific Heat Capacity, J/kg-K 410
910
Thermal Conductivity, W/m-K 26
110
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
31
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 27
9.5
Density, g/cm3 8.3
2.7
Embodied Carbon, kg CO2/kg material 2.7
9.1
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 300
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 340
110
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
51
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 18
28
Thermal Diffusivity, mm2/s 7.7
46
Thermal Shock Resistance, points 20
8.6

Alloy Composition

Aluminum (Al), % 0
90.5 to 95.5
Copper (Cu), % 80 to 83
0 to 0.050
Iron (Fe), % 0 to 0.2
0 to 0.55
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0
4.5 to 6.5
Manganese (Mn), % 0
0 to 0.45
Silicon (Si), % 3.5 to 4.5
0 to 1.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 11.5 to 16.5
0 to 0.1
Residuals, % 0
0 to 0.15