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EN-MC35110 Magnesium vs. EN 1.6781 Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while EN 1.6781 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-MC35110 magnesium and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
250
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 3.1
17
Fatigue Strength, MPa 110
450
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Tensile Strength: Ultimate (UTS), MPa 230
830
Tensile Strength: Yield (Proof), MPa 150
680

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 140
450
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
44
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 130
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 18
5.0
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 24
1.9
Embodied Energy, MJ/kg 170
25
Embodied Water, L/kg 940
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
130
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 34
29
Strength to Weight: Bending, points 44
25
Thermal Diffusivity, mm2/s 61
12
Thermal Shock Resistance, points 14
24

Alloy Composition


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Carbon (C), % 0
0.15 to 0.19
Chromium (Cr), % 0
1.3 to 1.8
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
92.6 to 94.6
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.0050
3.0 to 3.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.010
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0