ASTM A387 Grade 2 Steel vs. Grade 15 Babbitt Metal

ASTM A387 grade 2 steel belongs to the iron alloys classification, while grade 15 Babbitt Metal belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is grade 15 Babbitt Metal.

ASTM A387 Grade 2 (S50460) 0.5Cr-0.5Mo Steel Grade 15 (L53620) Lead-Base Babbitt Metal

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		140 to 170
Brinell Hardness		21

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		23

Poisson's Ratio		0.29
Poisson's Ratio		0.4

Shear Modulus, GPa		73
Shear Modulus, GPa		8.2

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		46

Melting Completion (Liquidus), °C		1470
Melting Completion (Liquidus), °C		280

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		250

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		140

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		26

Otherwise Unclassified Properties

Base Metal Price, % relative		2.6
Base Metal Price, % relative		17

Density, g/cm³		7.9
Density, g/cm³		10

Embodied Carbon, kg CO₂/kg material		1.6
Embodied Carbon, kg CO₂/kg material		3.6

Embodied Energy, MJ/kg		20
Embodied Energy, MJ/kg		47

Embodied Water, L/kg		50
Embodied Water, L/kg		840

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		1.2

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		9.0

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0050

Antimony (Sb), %		0
Antimony (Sb), %		14.5 to 17.5

Arsenic (As), %		0
Arsenic (As), %		0.8 to 1.4

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.1

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.050

Carbon (C), %		0.050 to 0.21
Carbon (C), %		0

Chromium (Cr), %		0.5 to 0.8
Chromium (Cr), %		0

Copper (Cu), %		0
Copper (Cu), %		0 to 0.6

Iron (Fe), %		97.1 to 98.3
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0
Lead (Pb), %		79 to 83.9

Manganese (Mn), %		0.55 to 0.8
Manganese (Mn), %		0

Molybdenum (Mo), %		0.45 to 0.6
Molybdenum (Mo), %		0

Phosphorus (P), %		0 to 0.025
Phosphorus (P), %		0

Silicon (Si), %		0.15 to 0.4
Silicon (Si), %		0

Sulfur (S), %		0 to 0.025
Sulfur (S), %		0

Tin (Sn), %		0
Tin (Sn), %		0.8 to 1.2

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.0050