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ACI-ASTM CK20 Steel vs. Grade 8 Babbitt Metal

ACI-ASTM CK20 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 ACI-ASTM CK20 steel and the bottom bar is grade 8 Babbitt Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
15
Elastic (Young's, Tensile) Modulus, GPa 200
24
Poisson's Ratio 0.28
0.41
Shear Modulus, GPa 78
8.5
Tensile Strength: Yield (Proof), MPa 260
23

Thermal Properties

Latent Heat of Fusion, J/g 310
46
Melting Completion (Liquidus), °C 1400
270
Melting Onset (Solidus), °C 1430
240
Specific Heat Capacity, J/kg-K 480
150
Thermal Conductivity, W/m-K 14
24
Thermal Expansion, µm/m-K 15
24

Otherwise Unclassified Properties

Base Metal Price, % relative 25
19
Density, g/cm3 7.8
10
Embodied Carbon, kg CO2/kg material 4.4
3.9
Embodied Energy, MJ/kg 62
53
Embodied Water, L/kg 190
840

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 170
11
Stiffness to Weight: Axial, points 14
1.3
Stiffness to Weight: Bending, points 25
9.2
Thermal Diffusivity, mm2/s 3.7
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 0.2
0
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 46.7 to 58
0 to 0.1
Lead (Pb), % 0
77.1 to 81.2
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0
0 to 0.0050