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Grade 7 Babbitt Metal vs. Grade 2 Babbitt Metal

Both grade 7 Babbitt Metal and grade 2 Babbitt Metal are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23
25
Compressive (Crushing) Strength, MPa 110
100
Elastic (Young's, Tensile) Modulus, GPa 26
53
Poisson's Ratio 0.4
0.35
Shear Modulus, GPa 9.1
19
Tensile Strength: Yield (Proof), MPa 25
42

Thermal Properties

Latent Heat of Fusion, J/g 48
72
Melting Completion (Liquidus), °C 270
350
Melting Onset (Solidus), °C 240
240
Specific Heat Capacity, J/kg-K 150
230
Thermal Expansion, µm/m-K 26
21

Otherwise Unclassified Properties

Base Metal Price, % relative 23
70
Density, g/cm3 10
7.3
Embodied Carbon, kg CO2/kg material 4.4
12
Embodied Energy, MJ/kg 62
200
Embodied Water, L/kg 880
1240

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 12
17
Stiffness to Weight: Axial, points 1.4
4.0
Stiffness to Weight: Bending, points 9.6
17

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 14 to 16
7.0 to 8.0
Arsenic (As), % 0.3 to 0.6
0 to 0.1
Bismuth (Bi), % 0 to 0.1
0 to 0.080
Cadmium (Cd), % 0 to 0.050
0 to 0.050
Copper (Cu), % 0 to 0.5
3.0 to 4.0
Iron (Fe), % 0 to 0.1
0 to 0.080
Lead (Pb), % 71.9 to 76.4
0 to 0.35
Tin (Sn), % 9.3 to 10.7
87.3 to 90
Zinc (Zn), % 0 to 0.0050
0 to 0.0050