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EN AC-21100 Aluminum vs. ZA-8

EN AC-21100 aluminum belongs to the aluminum alloys classification, while ZA-8 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, 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 EN AC-21100 aluminum and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 71
85 to 86
Elongation at Break, % 6.2 to 7.3
1.3 to 8.0
Fatigue Strength, MPa 79 to 87
51 to 100
Poisson's Ratio 0.33
0.26
Shear Modulus, GPa 27
34
Tensile Strength: Ultimate (UTS), MPa 340 to 350
210 to 370
Tensile Strength: Yield (Proof), MPa 210 to 240
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 390
110
Maximum Temperature: Mechanical, °C 170
100
Melting Completion (Liquidus), °C 670
400
Melting Onset (Solidus), °C 550
380
Specific Heat Capacity, J/kg-K 880
440
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
28
Electrical Conductivity: Equal Weight (Specific), % IACS 100
40

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.0
6.3
Embodied Carbon, kg CO2/kg material 8.0
3.3
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 1150
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
260 to 490
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 46
23
Strength to Weight: Axial, points 31 to 33
9.3 to 17
Strength to Weight: Bending, points 36 to 37
12 to 18
Thermal Diffusivity, mm2/s 48
42
Thermal Shock Resistance, points 15
7.6 to 13

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 4.2 to 5.2
0.8 to 1.3
Iron (Fe), % 0 to 0.19
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0 to 0.18
0 to 0.045
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
89.7 to 91.2
Residuals, % 0 to 0.1
0

Comparable Variants