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7049 Aluminum vs. C94500 Bronze

7049 aluminum belongs to the aluminum alloys classification, while C94500 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 7049 aluminum and the bottom bar is C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
50
Elastic (Young's, Tensile) Modulus, GPa 70
92
Elongation at Break, % 6.2 to 7.0
12
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 27
34
Tensile Strength: Ultimate (UTS), MPa 510 to 530
170
Tensile Strength: Yield (Proof), MPa 420 to 450
83

Thermal Properties

Latent Heat of Fusion, J/g 370
160
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 640
940
Melting Onset (Solidus), °C 480
800
Specific Heat Capacity, J/kg-K 860
330
Thermal Conductivity, W/m-K 130
52
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
10
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
30
Density, g/cm3 3.1
9.3
Embodied Carbon, kg CO2/kg material 8.1
3.2
Embodied Energy, MJ/kg 140
51
Embodied Water, L/kg 1110
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
17
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
37
Stiffness to Weight: Axial, points 13
5.5
Stiffness to Weight: Bending, points 45
16
Strength to Weight: Axial, points 46 to 47
5.2
Strength to Weight: Bending, points 46 to 47
7.4
Thermal Diffusivity, mm2/s 51
17
Thermal Shock Resistance, points 22 to 23
6.7

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
66.7 to 78
Iron (Fe), % 0 to 0.35
0 to 0.15
Lead (Pb), % 0
16 to 22
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.25
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
6.0 to 8.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0 to 1.2
Residuals, % 0 to 0.15
0