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C49300 Brass vs. 7049 Aluminum

C49300 brass belongs to the copper alloys classification, while 7049 aluminum belongs to the aluminum 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 C49300 brass and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 4.5 to 20
6.2 to 7.0
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
27
Shear Strength, MPa 270 to 290
300 to 310
Tensile Strength: Ultimate (UTS), MPa 430 to 520
510 to 530
Tensile Strength: Yield (Proof), MPa 210 to 410
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 170
370
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 880
640
Melting Onset (Solidus), °C 840
480
Specific Heat Capacity, J/kg-K 380
860
Thermal Conductivity, W/m-K 88
130
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
36
Electrical Conductivity: Equal Weight (Specific), % IACS 17
110

Otherwise Unclassified Properties

Base Metal Price, % relative 26
10
Density, g/cm3 8.0
3.1
Embodied Carbon, kg CO2/kg material 3.0
8.1
Embodied Energy, MJ/kg 50
140
Embodied Water, L/kg 370
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 71
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 800
1270 to 1440
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 15 to 18
46 to 47
Strength to Weight: Bending, points 16 to 18
46 to 47
Thermal Diffusivity, mm2/s 29
51
Thermal Shock Resistance, points 14 to 18
22 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.5
85.7 to 89.5
Antimony (Sb), % 0 to 0.5
0
Bismuth (Bi), % 0.5 to 2.0
0
Chromium (Cr), % 0
0.1 to 0.22
Copper (Cu), % 58 to 62
1.2 to 1.9
Iron (Fe), % 0 to 0.1
0 to 0.35
Lead (Pb), % 0 to 0.010
0
Magnesium (Mg), % 0
2.0 to 2.9
Manganese (Mn), % 0 to 0.030
0 to 0.2
Nickel (Ni), % 0 to 1.5
0
Phosphorus (P), % 0 to 0.2
0
Selenium (Se), % 0 to 0.2
0
Silicon (Si), % 0 to 0.1
0 to 0.25
Tin (Sn), % 1.0 to 1.8
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 30.6 to 40.5
7.2 to 8.2
Residuals, % 0
0 to 0.15