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AWS BVAu-7 vs. Grade 7 Babbitt Metal

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

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
26
Poisson's Ratio 0.38
0.4
Shear Modulus, GPa 45
9.1

Thermal Properties

Latent Heat of Fusion, J/g 140
48
Melting Completion (Liquidus), °C 1120
270
Melting Onset (Solidus), °C 1100
240
Specific Heat Capacity, J/kg-K 240
150
Thermal Expansion, µm/m-K 13
26

Otherwise Unclassified Properties

Density, g/cm3 15
10

Common Calculations

Stiffness to Weight: Axial, points 4.7
1.4
Stiffness to Weight: Bending, points 11
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
Cobalt (Co), % 0 to 0.060
0
Copper (Cu), % 0
0 to 0.5
Gold (Au), % 49.5 to 50.5
0
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0 to 0.0020
71.9 to 76.4
Nickel (Ni), % 24.5 to 25.5
0
Palladium (Pd), % 23.9 to 26
0
Phosphorus (P), % 0 to 0.0020
0
Tin (Sn), % 0
9.3 to 10.7
Zinc (Zn), % 0 to 0.0010
0 to 0.0050