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7049 Aluminum vs. ZA-8

7049 aluminum belongs to the aluminum alloys classification, while ZA-8 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 70
85 to 86
Elongation at Break, % 6.2 to 7.0
1.3 to 8.0
Fatigue Strength, MPa 160 to 170
51 to 100
Poisson's Ratio 0.32
0.26
Shear Modulus, GPa 27
34
Shear Strength, MPa 300 to 310
240 to 280
Tensile Strength: Ultimate (UTS), MPa 510 to 530
210 to 370
Tensile Strength: Yield (Proof), MPa 420 to 450
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 370
110
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 640
400
Melting Onset (Solidus), °C 480
380
Specific Heat Capacity, J/kg-K 860
440
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
28
Electrical Conductivity: Equal Weight (Specific), % IACS 110
40

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 3.1
6.3
Embodied Carbon, kg CO2/kg material 8.1
3.3
Embodied Energy, MJ/kg 140
62
Embodied Water, L/kg 1110
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
260 to 490
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 46 to 47
9.3 to 17
Strength to Weight: Bending, points 46 to 47
12 to 18
Thermal Diffusivity, mm2/s 51
42
Thermal Shock Resistance, points 22 to 23
7.6 to 13

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0.8 to 1.3
Iron (Fe), % 0 to 0.35
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 2.0 to 2.9
0.015 to 0.030
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0 to 0.25
0 to 0.045
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
89.7 to 91.2
Residuals, % 0 to 0.15
0

Comparable Variants