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ACI-ASTM CA40 Steel vs. EN-MC35110 Magnesium

ACI-ASTM CA40 steel belongs to the iron alloys classification, while EN-MC35110 magnesium belongs to the magnesium 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 ACI-ASTM CA40 steel and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
63
Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 10
3.1
Fatigue Strength, MPa 460
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Tensile Strength: Ultimate (UTS), MPa 910
230
Tensile Strength: Yield (Proof), MPa 860
150

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 750
140
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1500
520
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 25
110
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
130

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
18
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.0
24
Embodied Energy, MJ/kg 28
170
Embodied Water, L/kg 100
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 33
34
Strength to Weight: Bending, points 27
44
Thermal Diffusivity, mm2/s 6.7
61
Thermal Shock Resistance, points 33
14

Alloy Composition

Carbon (C), % 0.2 to 0.4
0
Chromium (Cr), % 11.5 to 14
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 81.5 to 88.3
0 to 0.010
Magnesium (Mg), % 0
92 to 95.4
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
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