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AS41B Magnesium vs. Grade 2 Babbitt Metal

AS41B magnesium belongs to the magnesium alloys classification, while grade 2 Babbitt Metal belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, 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 AS41B magnesium and the bottom bar is grade 2 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
53
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 18
19
Tensile Strength: Yield (Proof), MPa 140
42

Thermal Properties

Latent Heat of Fusion, J/g 370
72
Melting Completion (Liquidus), °C 620
350
Melting Onset (Solidus), °C 570
240
Specific Heat Capacity, J/kg-K 1000
230
Thermal Expansion, µm/m-K 26
21

Otherwise Unclassified Properties

Base Metal Price, % relative 12
70
Density, g/cm3 1.7
7.3
Embodied Carbon, kg CO2/kg material 23
12
Embodied Energy, MJ/kg 160
200
Embodied Water, L/kg 980
1240

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 220
17
Stiffness to Weight: Axial, points 15
4.0
Stiffness to Weight: Bending, points 72
17

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.0050
Antimony (Sb), % 0
7.0 to 8.0
Arsenic (As), % 0
0 to 0.1
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 0 to 0.020
3.0 to 4.0
Iron (Fe), % 0 to 0.0035
0 to 0.080
Lead (Pb), % 0
0 to 0.35
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0
87.3 to 90
Zinc (Zn), % 0 to 0.12
0 to 0.0050