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EN-MC21310 Magnesium vs. Grade 8 Babbitt Metal

EN-MC21310 magnesium belongs to the magnesium alloys classification, while grade 8 Babbitt Metal belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (12, 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-MC21310 magnesium and the bottom bar is grade 8 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
15
Elastic (Young's, Tensile) Modulus, GPa 45
24
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 17
8.5
Tensile Strength: Yield (Proof), MPa 120
23

Thermal Properties

Latent Heat of Fusion, J/g 360
46
Melting Completion (Liquidus), °C 600
270
Melting Onset (Solidus), °C 560
240
Specific Heat Capacity, J/kg-K 1000
150
Thermal Conductivity, W/m-K 89
24
Thermal Expansion, µm/m-K 26
24

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 1.6
10
Embodied Carbon, kg CO2/kg material 23
3.9
Embodied Energy, MJ/kg 160
53
Embodied Water, L/kg 970
840

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 160
11
Stiffness to Weight: Axial, points 15
1.3
Stiffness to Weight: Bending, points 73
9.2
Thermal Diffusivity, mm2/s 55
16

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
0 to 0.0050
Antimony (Sb), % 0
14 to 16
Arsenic (As), % 0
0.3 to 0.6
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 0 to 0.010
0 to 0.5
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
77.1 to 81.2
Magnesium (Mg), % 95.2 to 97.4
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.7 to 1.2
0
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0 to 0.2
0 to 0.0050
Residuals, % 0 to 0.010
0