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EN-MC65210 Magnesium vs. ACI-ASTM CA6NM Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CA6NM steel belongs to the iron alloys. There are 28 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-MC65210 magnesium and the bottom bar is ACI-ASTM CA6NM steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
250
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.8
17
Fatigue Strength, MPa 110
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Tensile Strength: Ultimate (UTS), MPa 270
850
Tensile Strength: Yield (Proof), MPa 200
620

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 170
770
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
25
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.2

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 27
2.5
Embodied Energy, MJ/kg 220
34

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
130
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1000
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 59
25
Strength to Weight: Axial, points 38
30
Strength to Weight: Bending, points 47
26
Thermal Diffusivity, mm2/s 58
6.7
Thermal Shock Resistance, points 17
31

Alloy Composition


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Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
78.4 to 84.6
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0 to 0.0050
3.5 to 4.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0