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AZ61A Magnesium vs. EN 1.8823 Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.8823 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 AZ61A magnesium and the bottom bar is EN 1.8823 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
25
Fatigue Strength, MPa 130
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 150
340
Tensile Strength: Ultimate (UTS), MPa 280
530
Tensile Strength: Yield (Proof), MPa 170
360

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 120
410
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 79
47
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 62
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.4
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
1.6
Embodied Energy, MJ/kg 160
22
Embodied Water, L/kg 980
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
120
Resilience: Unit (Modulus of Resilience), kJ/m3 310
360
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 46
19
Strength to Weight: Bending, points 56
19
Thermal Diffusivity, mm2/s 47
13
Thermal Shock Resistance, points 17
16

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0.015 to 0.034
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
0 to 0.35
Copper (Cu), % 0 to 0.050
0 to 0.6
Iron (Fe), % 0 to 0.0050
95.6 to 99.985
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0 to 0.0050
0 to 0.55
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.017
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.55
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.12
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0