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AWS BVAg-18 vs. Grade 7 Babbitt Metal

Both AWS BVAg-18 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 BVAg-18 and the bottom bar is grade 7 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
26
Poisson's Ratio 0.36
0.4
Shear Modulus, GPa 30
9.1

Thermal Properties

Latent Heat of Fusion, J/g 140
48
Melting Completion (Liquidus), °C 720
270
Melting Onset (Solidus), °C 600
240
Specific Heat Capacity, J/kg-K 280
150
Thermal Expansion, µm/m-K 19
26

Otherwise Unclassified Properties

Density, g/cm3 9.7
10
Embodied Carbon, kg CO2/kg material 59
4.4
Embodied Energy, MJ/kg 930
62

Common Calculations

Stiffness to Weight: Axial, points 4.7
1.4
Stiffness to Weight: Bending, points 15
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 to 0.0010
0 to 0.050
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 28.5 to 31.5
0 to 0.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0 to 0.0020
71.9 to 76.4
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 59 to 61
0
Tin (Sn), % 9.5 to 10.5
9.3 to 10.7
Zinc (Zn), % 0 to 0.0010
0 to 0.0050