AISI 440A Stainless Steel vs. Grade 7 Babbitt Metal

AISI 440A stainless steel belongs to the iron alloys classification, while grade 7 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 (18, in this case) are not shown.

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

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.28
Poisson's Ratio		0.4

Shear Modulus, GPa		77
Shear Modulus, GPa		9.1

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

Thermal Properties

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

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

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

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

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

Otherwise Unclassified Properties

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

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

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

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

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

Common Calculations

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

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

Alloy Composition

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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