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Grade 7 Babbitt Metal vs. AWS ERTi-2

Grade 7 Babbitt Metal belongs to the otherwise unclassified metals classification, while AWS ERTi-2 belongs to the titanium alloys. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade 7 Babbitt Metal and the bottom bar is AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 26
110
Poisson's Ratio 0.4
0.32
Shear Modulus, GPa 9.1
40
Tensile Strength: Yield (Proof), MPa 25
280

Thermal Properties

Latent Heat of Fusion, J/g 48
420
Melting Completion (Liquidus), °C 270
1670
Melting Onset (Solidus), °C 240
1620
Specific Heat Capacity, J/kg-K 150
540
Thermal Expansion, µm/m-K 26
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 23
37
Density, g/cm3 10
4.5
Embodied Carbon, kg CO2/kg material 4.4
31
Embodied Energy, MJ/kg 62
510
Embodied Water, L/kg 880
110

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 12
360
Stiffness to Weight: Axial, points 1.4
13
Stiffness to Weight: Bending, points 9.6
35

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 14 to 16
0
Arsenic (As), % 0.3 to 0.6
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0 to 0.5
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 0.1
0 to 0.12
Lead (Pb), % 71.9 to 76.4
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Tin (Sn), % 9.3 to 10.7
0
Titanium (Ti), % 0
99.667 to 99.92
Zinc (Zn), % 0 to 0.0050
0