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AWS BAg-28 vs. Grade 7 Babbitt Metal

Both AWS BAg-28 and grade 7 Babbitt Metal are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 13 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-28 and the bottom bar is grade 7 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 88
26
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 33
9.1

Thermal Properties

Latent Heat of Fusion, J/g 140
48
Melting Completion (Liquidus), °C 710
270
Melting Onset (Solidus), °C 650
240
Specific Heat Capacity, J/kg-K 320
150
Thermal Expansion, µm/m-K 21
26

Otherwise Unclassified Properties

Density, g/cm3 8.9
10
Embodied Carbon, kg CO2/kg material 40
4.4
Embodied Energy, MJ/kg 630
62

Common Calculations

Stiffness to Weight: Axial, points 5.6
1.4
Stiffness to Weight: Bending, points 17
9.6

Alloy Composition

Aluminum (Al), % 0
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), % 29 to 31
0 to 0.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
71.9 to 76.4
Silver (Ag), % 39 to 41
0
Tin (Sn), % 1.5 to 2.5
9.3 to 10.7
Zinc (Zn), % 26 to 30
0 to 0.0050
Residuals, % 0 to 0.15
0