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EQ21A Magnesium vs. Grade 3 Babbitt Metal

EQ21A magnesium belongs to the magnesium alloys classification, while grade 3 Babbitt Metal belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (16, 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 EQ21A magnesium and the bottom bar is grade 3 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
27
Compressive (Crushing) Strength, MPa 350
120
Elastic (Young's, Tensile) Modulus, GPa 44
56
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 17
21
Tensile Strength: Yield (Proof), MPa 190
46

Thermal Properties

Latent Heat of Fusion, J/g 340
79
Melting Completion (Liquidus), °C 640
420
Melting Onset (Solidus), °C 560
240
Specific Heat Capacity, J/kg-K 980
230
Thermal Expansion, µm/m-K 27
21

Otherwise Unclassified Properties

Base Metal Price, % relative 80
70
Density, g/cm3 1.9
7.4
Embodied Carbon, kg CO2/kg material 27
12
Embodied Energy, MJ/kg 210
200

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 410
19
Stiffness to Weight: Axial, points 13
4.2
Stiffness to Weight: Bending, points 63
17

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
7.5 to 8.5
Arsenic (As), % 0
0 to 0.1
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 0.050 to 0.1
7.5 to 8.5
Iron (Fe), % 0
0 to 0.080
Lead (Pb), % 0
0 to 0.35
Magnesium (Mg), % 93.9 to 96.8
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Tin (Sn), % 0
82.3 to 85
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 0.0050
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0