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EN-MC32110 Magnesium vs. ASTM A356 Grade 8

EN-MC32110 magnesium belongs to the magnesium alloys classification, while ASTM A356 grade 8 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-MC32110 magnesium and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
190
Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
21
Fatigue Strength, MPa 80
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 220
630
Tensile Strength: Yield (Proof), MPa 140
390

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 99
440
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 500
1430
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
38
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.5
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
2.0
Embodied Energy, MJ/kg 150
26
Embodied Water, L/kg 920
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 38
21
Thermal Diffusivity, mm2/s 58
10
Thermal Shock Resistance, points 12
18

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
1.0 to 1.5
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
95.4 to 97.4
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.2
0.2 to 0.6
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0