Grade 7 Babbitt Metal vs. AISI 440A Stainless Steel

Grade 7 Babbitt Metal belongs to the otherwise unclassified metals classification, while AISI 440A stainless steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is grade 7 Babbitt Metal and the bottom bar is AISI 440A stainless steel.

Grade 7 (L53585) Lead-Base Babbitt Metal AISI 440A (S44002) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		26
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.4
Poisson's Ratio		0.28

Shear Modulus, GPa		9.1
Shear Modulus, GPa		77

Tensile Strength: Yield (Proof), MPa		25
Tensile Strength: Yield (Proof), MPa		420 to 1650

Thermal Properties

Latent Heat of Fusion, J/g		48
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		270
Melting Completion (Liquidus), °C		1480

Melting Onset (Solidus), °C		240
Melting Onset (Solidus), °C		1370

Specific Heat Capacity, J/kg-K		150
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		26
Thermal Expansion, µm/m-K		10

Otherwise Unclassified Properties

Base Metal Price, % relative		23
Base Metal Price, % relative		9.0

Density, g/cm³		10
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		4.4
Embodied Carbon, kg CO₂/kg material		2.2

Embodied Energy, MJ/kg		62
Embodied Energy, MJ/kg		31

Embodied Water, L/kg		880
Embodied Water, L/kg		120

Common Calculations

Stiffness to Weight: Axial, points		1.4
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		9.6
Stiffness to Weight: Bending, points		25

Alloy Composition

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

Antimony (Sb), %		14 to 16
Antimony (Sb), %		0

Arsenic (As), %		0.3 to 0.6
Arsenic (As), %		0

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

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

Carbon (C), %		0
Carbon (C), %		0.6 to 0.75

Chromium (Cr), %		0
Chromium (Cr), %		16 to 18

Copper (Cu), %		0 to 0.5
Copper (Cu), %		0

Iron (Fe), %		0 to 0.1
Iron (Fe), %		78.4 to 83.4

Lead (Pb), %		71.9 to 76.4
Lead (Pb), %		0

Manganese (Mn), %		0
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 0.75

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0
Silicon (Si), %		0 to 1.0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.015

Tin (Sn), %		9.3 to 10.7
Tin (Sn), %		0

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