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ACI-ASTM CB30 Steel vs. EN-MC35110 Magnesium

ACI-ASTM CB30 steel belongs to the iron alloys classification, while EN-MC35110 magnesium belongs to the magnesium 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 ACI-ASTM CB30 steel and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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