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EN-MC32110 Magnesium vs. ACI-ASTM CB30 Steel

EN-MC32110 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CB30 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 EN-MC32110 magnesium and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
210
Elastic (Young's, Tensile) Modulus, GPa 49
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 19
77
Tensile Strength: Ultimate (UTS), MPa 220
500
Tensile Strength: Yield (Proof), MPa 140
230

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 99
940
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 500
1380
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 2.1
7.7
Embodied Carbon, kg CO2/kg material 22
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 920
130

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 210
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 38
18
Thermal Diffusivity, mm2/s 58
5.6
Thermal Shock Resistance, points 12
17

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 2.4 to 3.0
0 to 1.2
Iron (Fe), % 0 to 0.050
72.9 to 82
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 1.0
Nickel (Ni), % 0 to 0.010
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0