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AM60A Magnesium vs. ACI-ASTM CC50 Steel

AM60A magnesium belongs to the magnesium alloys classification, while ACI-ASTM CC50 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 AM60A magnesium and the bottom bar is ACI-ASTM CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
210
Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 18
80
Tensile Strength: Ultimate (UTS), MPa 230
430

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 620
1420
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 1000
490
Thermal Conductivity, W/m-K 62
17
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 69
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 1.7
7.6
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 990
170

Common Calculations

Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 71
26
Strength to Weight: Axial, points 37
16
Strength to Weight: Bending, points 49
17
Thermal Diffusivity, mm2/s 37
4.5
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
62.9 to 74
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 1.0
Nickel (Ni), % 0 to 0.030
0 to 4.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.22
0