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ISO-WD32250 Magnesium vs. Grade 1 Babbitt Metal

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while grade 1 Babbitt Metal belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 ISO-WD32250 magnesium and the bottom bar is grade 1 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
53
Elongation at Break, % 4.5 to 8.6
34
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 17
20
Tensile Strength: Yield (Proof), MPa 240 to 290
30

Thermal Properties

Latent Heat of Fusion, J/g 340
70
Melting Completion (Liquidus), °C 600
370
Melting Onset (Solidus), °C 550
220
Specific Heat Capacity, J/kg-K 980
230
Thermal Conductivity, W/m-K 130
45
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
13
Electrical Conductivity: Equal Weight (Specific), % IACS 130
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
75
Density, g/cm3 1.8
7.3
Embodied Carbon, kg CO2/kg material 24
12
Embodied Energy, MJ/kg 160
200
Embodied Water, L/kg 950
1160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 930
8.6
Stiffness to Weight: Axial, points 14
4.0
Stiffness to Weight: Bending, points 67
17
Thermal Diffusivity, mm2/s 72
26

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
4.0 to 5.0
Arsenic (As), % 0
0 to 0.1
Bismuth (Bi), % 0
0 to 0.080
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 0
0 to 0.080
Lead (Pb), % 0
0 to 0.35
Magnesium (Mg), % 94.9 to 97.1
0
Tin (Sn), % 0
89.3 to 92
Zinc (Zn), % 2.5 to 4.0
0 to 0.0050
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0