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EN-MC65210 Magnesium vs. SAE-AISI M3 Class 1 Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while SAE-AISI M3 class 1 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 SAE-AISI M3 class 1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
77
Tensile Strength: Ultimate (UTS), MPa 270
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 610
1610
Melting Onset (Solidus), °C 540
1570
Specific Heat Capacity, J/kg-K 970
440
Thermal Conductivity, W/m-K 110
26
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.3
Embodied Carbon, kg CO2/kg material 27
10
Embodied Energy, MJ/kg 220
150

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 59
23
Strength to Weight: Axial, points 38
26 to 72
Strength to Weight: Bending, points 47
22 to 44
Thermal Diffusivity, mm2/s 58
7.2
Thermal Shock Resistance, points 17
24 to 67

Alloy Composition


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Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
76.9 to 82.9
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 0 to 0.0050
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.2 to 0.45
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
5.0 to 6.8
Unspecified Rare Earths, % 2.0 to 3.0
0
Vanadium (V), % 0
2.3 to 2.8
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0