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EN-MC95310 Magnesium vs. ACI-ASTM CT15C Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while ACI-ASTM CT15C steel belongs to the iron 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 EN-MC95310 magnesium and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
140
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
23
Fatigue Strength, MPa 110
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Tensile Strength: Ultimate (UTS), MPa 280
500
Tensile Strength: Yield (Proof), MPa 190
190

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 540
1360
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 25
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 50
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 29
6.1
Embodied Energy, MJ/kg 260
88
Embodied Water, L/kg 900
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
90
Resilience: Unit (Modulus of Resilience), kJ/m3 420
93
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 49
17
Thermal Diffusivity, mm2/s 28
3.2
Thermal Shock Resistance, points 18
12

Alloy Composition


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Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
40.3 to 49.2
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0.15 to 1.5
Nickel (Ni), % 0 to 0.0050
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.15 to 1.5
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0