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Grade 1 Babbitt Metal vs. ISO-WD21150 Magnesium

Grade 1 Babbitt Metal belongs to the otherwise unclassified metals classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 grade 1 Babbitt Metal and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 53
45
Elongation at Break, % 34
5.7 to 11
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 20
17
Tensile Strength: Yield (Proof), MPa 30
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 70
350
Melting Completion (Liquidus), °C 370
600
Melting Onset (Solidus), °C 220
550
Specific Heat Capacity, J/kg-K 230
990
Thermal Conductivity, W/m-K 45
100
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
19
Electrical Conductivity: Equal Weight (Specific), % IACS 16
100

Otherwise Unclassified Properties

Base Metal Price, % relative 75
12
Density, g/cm3 7.3
1.7
Embodied Carbon, kg CO2/kg material 12
23
Embodied Energy, MJ/kg 200
160
Embodied Water, L/kg 1160
980

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 8.6
160 to 460
Stiffness to Weight: Axial, points 4.0
15
Stiffness to Weight: Bending, points 17
70
Thermal Diffusivity, mm2/s 26
60

Alloy Composition

Aluminum (Al), % 0 to 0.0050
2.4 to 3.6
Antimony (Sb), % 4.0 to 5.0
0
Arsenic (As), % 0 to 0.1
0
Bismuth (Bi), % 0 to 0.080
0
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 4.0 to 5.0
0 to 0.050
Iron (Fe), % 0 to 0.080
0 to 0.0050
Lead (Pb), % 0 to 0.35
0
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
Tin (Sn), % 89.3 to 92
0
Zinc (Zn), % 0 to 0.0050
0.5 to 1.5
Residuals, % 0
0 to 0.3