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EN-MC65120 Magnesium vs. EN 1.8946 Steel

EN-MC65120 magnesium belongs to the magnesium alloys classification, while EN 1.8946 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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-MC65120 magnesium and the bottom bar is EN 1.8946 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
170
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 3.1
16
Fatigue Strength, MPa 80
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 92
350
Tensile Strength: Ultimate (UTS), MPa 160
580
Tensile Strength: Yield (Proof), MPa 110
390

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 180
420
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 100
43
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.7
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 25
1.7
Embodied Energy, MJ/kg 190
23
Embodied Water, L/kg 930
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
82
Resilience: Unit (Modulus of Resilience), kJ/m3 140
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 23
20
Strength to Weight: Bending, points 34
20
Thermal Diffusivity, mm2/s 56
12
Thermal Shock Resistance, points 9.8
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
0.25 to 1.4
Copper (Cu), % 0 to 0.030
0.2 to 0.6
Iron (Fe), % 0 to 0.010
94.8 to 99.5
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0 to 1.1
Nickel (Ni), % 0 to 0.0050
0 to 0.7
Niobium (Nb), % 0
0 to 0.065
Phosphorus (P), % 0
0.050 to 0.16
Silicon (Si), % 0 to 0.010
0 to 0.8
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 0
0 to 0.12
Unspecified Rare Earths, % 2.5 to 4.0
0
Vanadium (V), % 0
0 to 0.14
Zinc (Zn), % 2.0 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0