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EN-MC35110 Magnesium vs. ACI-ASTM CB30 Steel

EN-MC35110 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-MC35110 magnesium and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
210
Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Tensile Strength: Ultimate (UTS), MPa 230
500
Tensile Strength: Yield (Proof), MPa 150
230

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 140
940
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 520
1380
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
21
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 1.9
7.7
Embodied Carbon, kg CO2/kg material 24
2.3
Embodied Energy, MJ/kg 170
33
Embodied Water, L/kg 940
130

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 260
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
25
Strength to Weight: Axial, points 34
18
Strength to Weight: Bending, points 44
18
Thermal Diffusivity, mm2/s 61
5.6
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0 to 0.030
0 to 1.2
Iron (Fe), % 0 to 0.010
72.9 to 82
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Nickel (Ni), % 0 to 0.0050
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0