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AM100A Magnesium vs. SAE-AISI 1008 Steel

AM100A magnesium belongs to the magnesium alloys classification, while SAE-AISI 1008 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 AM100A magnesium and the bottom bar is SAE-AISI 1008 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 1.0 to 6.8
22 to 33
Fatigue Strength, MPa 48 to 70
150 to 220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 90 to 150
220 to 230
Tensile Strength: Ultimate (UTS), MPa 160 to 270
330 to 370
Tensile Strength: Yield (Proof), MPa 78 to 140
190 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 140
400
Melting Completion (Liquidus), °C 590
1470
Melting Onset (Solidus), °C 460
1430
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 73
62
Thermal Expansion, µm/m-K 25
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 59
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 22
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 1000
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.3 to 15
78 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 66 to 210
92 to 260
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 70
24
Strength to Weight: Axial, points 25 to 44
12 to 13
Strength to Weight: Bending, points 38 to 54
13 to 15
Thermal Diffusivity, mm2/s 43
17
Thermal Shock Resistance, points 9.7 to 17
10 to 12

Alloy Composition

Aluminum (Al), % 9.3 to 10.7
0
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
99.31 to 99.7
Magnesium (Mg), % 87.9 to 90.6
0
Manganese (Mn), % 0.1 to 0.35
0.3 to 0.5
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.3
0