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AWS ERTi-1 vs. Grade 8 Babbitt Metal

AWS ERTi-1 belongs to the titanium alloys classification, while grade 8 Babbitt Metal belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 AWS ERTi-1 and the bottom bar is grade 8 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
24
Poisson's Ratio 0.32
0.41
Shear Modulus, GPa 41
8.5
Tensile Strength: Yield (Proof), MPa 170
23

Thermal Properties

Latent Heat of Fusion, J/g 420
46
Melting Completion (Liquidus), °C 1670
270
Melting Onset (Solidus), °C 1620
240
Specific Heat Capacity, J/kg-K 540
150
Thermal Conductivity, W/m-K 21
24
Thermal Expansion, µm/m-K 8.7
24

Otherwise Unclassified Properties

Base Metal Price, % relative 37
19
Density, g/cm3 4.5
10
Embodied Carbon, kg CO2/kg material 31
3.9
Embodied Energy, MJ/kg 510
53
Embodied Water, L/kg 110
840

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
11
Stiffness to Weight: Axial, points 13
1.3
Stiffness to Weight: Bending, points 35
9.2
Thermal Diffusivity, mm2/s 8.7
16

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
0 to 0.050
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0 to 0.5
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
0 to 0.1
Lead (Pb), % 0
77.1 to 81.2
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Tin (Sn), % 0
4.5 to 5.5
Titanium (Ti), % 99.773 to 99.97
0
Zinc (Zn), % 0
0 to 0.0050