MakeItFrom.com
Menu (ESC)

AZ91A Magnesium vs. 7049 Aluminum

AZ91A magnesium belongs to the magnesium alloys classification, while 7049 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AZ91A magnesium and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
140
Elastic (Young's, Tensile) Modulus, GPa 46
70
Elongation at Break, % 5.0
6.2 to 7.0
Fatigue Strength, MPa 99
160 to 170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
27
Shear Strength, MPa 140
300 to 310
Tensile Strength: Ultimate (UTS), MPa 240
510 to 530
Tensile Strength: Yield (Proof), MPa 160
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 360
370
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 470
480
Specific Heat Capacity, J/kg-K 990
860
Thermal Conductivity, W/m-K 73
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
36
Electrical Conductivity: Equal Weight (Specific), % IACS 52
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
3.1
Embodied Carbon, kg CO2/kg material 22
8.1
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1270 to 1440
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
45
Strength to Weight: Axial, points 38
46 to 47
Strength to Weight: Bending, points 49
46 to 47
Thermal Diffusivity, mm2/s 42
51
Thermal Shock Resistance, points 14
22 to 23

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 460
Aluminum (Al), % 8.3 to 9.7
85.7 to 89.5
Chromium (Cr), % 0
0.1 to 0.22
Copper (Cu), % 0 to 0.1
1.2 to 1.9
Iron (Fe), % 0
0 to 0.35
Magnesium (Mg), % 88.2 to 91.2
2.0 to 2.9
Manganese (Mn), % 0.13 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.25
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0.35 to 1.0
7.2 to 8.2
Residuals, % 0
0 to 0.15