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C42200 Brass vs. 7049 Aluminum

C42200 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 (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 C42200 brass and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 2.0 to 46
6.2 to 7.0
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
27
Shear Strength, MPa 210 to 350
300 to 310
Tensile Strength: Ultimate (UTS), MPa 300 to 610
510 to 530
Tensile Strength: Yield (Proof), MPa 100 to 570
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 200
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1040
640
Melting Onset (Solidus), °C 1020
480
Specific Heat Capacity, J/kg-K 380
860
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
36
Electrical Conductivity: Equal Weight (Specific), % IACS 32
110

Otherwise Unclassified Properties

Base Metal Price, % relative 29
10
Density, g/cm3 8.6
3.1
Embodied Carbon, kg CO2/kg material 2.7
8.1
Embodied Energy, MJ/kg 44
140
Embodied Water, L/kg 320
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 110
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 49 to 1460
1270 to 1440
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 9.5 to 19
46 to 47
Strength to Weight: Bending, points 11 to 18
46 to 47
Thermal Diffusivity, mm2/s 39
51
Thermal Shock Resistance, points 10 to 21
22 to 23

Alloy Composition

Aluminum (Al), % 0
85.7 to 89.5
Chromium (Cr), % 0
0.1 to 0.22
Copper (Cu), % 86 to 89
1.2 to 1.9
Iron (Fe), % 0 to 0.050
0 to 0.35
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
2.0 to 2.9
Manganese (Mn), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.35
0
Silicon (Si), % 0
0 to 0.25
Tin (Sn), % 0.8 to 1.4
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 8.7 to 13.2
7.2 to 8.2
Residuals, % 0
0 to 0.15