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EN-MC95310 Magnesium vs. ASTM A387 Grade 2 Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while ASTM A387 grade 2 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-MC95310 magnesium and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.2
25
Fatigue Strength, MPa 110
190 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 160
300 to 350
Tensile Strength: Ultimate (UTS), MPa 280
470 to 550
Tensile Strength: Yield (Proof), MPa 190
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
45
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.6
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 29
1.6
Embodied Energy, MJ/kg 260
20
Embodied Water, L/kg 900
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 420
180 to 320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
16 to 20
Strength to Weight: Bending, points 49
17 to 19
Thermal Diffusivity, mm2/s 28
12
Thermal Shock Resistance, points 18
14 to 16

Alloy Composition


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Carbon (C), % 0
0.050 to 0.21
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
97.1 to 98.3
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
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
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
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