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ASTM A387 Grade 12 Steel vs. Grade 8 Babbitt Metal

ASTM A387 grade 12 steel belongs to the iron alloys classification, while grade 8 Babbitt Metal belongs to the otherwise unclassified metals. There are 20 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 ASTM A387 grade 12 steel and the bottom bar is grade 8 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
15
Elastic (Young's, Tensile) Modulus, GPa 190
24
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 73
8.5
Tensile Strength: Yield (Proof), MPa 260 to 310
23

Thermal Properties

Latent Heat of Fusion, J/g 250
46
Melting Completion (Liquidus), °C 1470
270
Melting Onset (Solidus), °C 1420
240
Specific Heat Capacity, J/kg-K 470
150
Thermal Conductivity, W/m-K 44
24
Thermal Expansion, µm/m-K 13
24

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
19
Density, g/cm3 7.8
10
Embodied Carbon, kg CO2/kg material 1.6
3.9
Embodied Energy, MJ/kg 21
53
Embodied Water, L/kg 51
840

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
11
Stiffness to Weight: Axial, points 13
1.3
Stiffness to Weight: Bending, points 24
9.2
Thermal Diffusivity, mm2/s 12
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), % 0.050 to 0.17
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 97 to 98.2
0 to 0.1
Lead (Pb), % 0
77.1 to 81.2
Manganese (Mn), % 0.4 to 0.65
0
Molybdenum (Mo), % 0.45 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.15 to 0.4
0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0
0 to 0.0050