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Grade 7 Babbitt Metal vs. AWS BNi-7

Grade 7 Babbitt Metal belongs to the otherwise unclassified metals classification, while AWS BNi-7 belongs to the nickel alloys. There are 15 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 26
170
Poisson's Ratio 0.4
0.3
Shear Modulus, GPa 9.1
67

Thermal Properties

Latent Heat of Fusion, J/g 48
280
Melting Completion (Liquidus), °C 270
890
Melting Onset (Solidus), °C 240
890
Specific Heat Capacity, J/kg-K 150
490
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
55
Density, g/cm3 10
8.0
Embodied Carbon, kg CO2/kg material 4.4
8.8
Embodied Energy, MJ/kg 62
120
Embodied Water, L/kg 880
240

Common Calculations

Stiffness to Weight: Axial, points 1.4
12
Stiffness to Weight: Bending, points 9.6
23

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.050
Antimony (Sb), % 14 to 16
0
Arsenic (As), % 0.3 to 0.6
0
Bismuth (Bi), % 0 to 0.1
0
Boron (B), % 0
0 to 0.010
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
13 to 15
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 0.1
0 to 0.2
Lead (Pb), % 71.9 to 76.4
0
Manganese (Mn), % 0
0 to 0.040
Nickel (Ni), % 0
73.3 to 77.3
Phosphorus (P), % 0
9.7 to 10.5
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 9.3 to 10.7
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.0050
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5