MakeItFrom.com
Menu (ESC)

7003 Aluminum vs. AZ31C Magnesium

7003 aluminum belongs to the aluminum alloys classification, while AZ31C magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 7003 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 11
12
Fatigue Strength, MPa 130 to 150
150
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 210 to 230
130
Tensile Strength: Ultimate (UTS), MPa 350 to 390
260
Tensile Strength: Yield (Proof), MPa 300 to 310
200

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 200
110
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 510
550
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
19
Electrical Conductivity: Equal Weight (Specific), % IACS 110
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 8.1
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
28
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
440
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
70
Strength to Weight: Axial, points 33 to 37
42
Strength to Weight: Bending, points 37 to 40
53
Thermal Diffusivity, mm2/s 59
74
Thermal Shock Resistance, points 15 to 17
16

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
2.4 to 3.6
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 0.5 to 1.0
93.4 to 97
Manganese (Mn), % 0 to 0.3
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.0 to 6.5
0.5 to 1.5
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.3