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AWS BAg-1a vs. Grade 7 Babbitt Metal

Both AWS BAg-1a 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-1a and the bottom bar is grade 7 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 77
26
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 29
9.1

Thermal Properties

Latent Heat of Fusion, J/g 120
48
Melting Completion (Liquidus), °C 640
270
Melting Onset (Solidus), °C 630
240
Specific Heat Capacity, J/kg-K 280
150
Thermal Expansion, µm/m-K 22
26

Otherwise Unclassified Properties

Density, g/cm3 9.3
10
Embodied Carbon, kg CO2/kg material 48
4.4
Embodied Energy, MJ/kg 760
62

Common Calculations

Stiffness to Weight: Axial, points 4.6
1.4
Stiffness to Weight: Bending, points 15
9.6

Alloy Composition


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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), % 17 to 19
0 to 0.050
Copper (Cu), % 14.5 to 16.5
0 to 0.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
71.9 to 76.4
Silver (Ag), % 49 to 51
0
Tin (Sn), % 0
9.3 to 10.7
Zinc (Zn), % 14.5 to 18.5
0 to 0.0050
Residuals, % 0 to 0.15
0