SAE-AISI 9255 Steel vs. Grade 7 Babbitt Metal

SAE-AISI 9255 steel belongs to the iron alloys classification, while grade 7 Babbitt Metal belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9255 steel and the bottom bar is grade 7 Babbitt Metal.

SAE-AISI 9255 (G92550) Silicon Steel Grade 7 (L53585) Lead-Base Babbitt Metal

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		200
Brinell Hardness		23

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		26

Poisson's Ratio		0.29
Poisson's Ratio		0.4

Shear Modulus, GPa		72
Shear Modulus, GPa		9.1

Tensile Strength: Yield (Proof), MPa		390
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		1430
Melting Completion (Liquidus), °C		270

Melting Onset (Solidus), °C		1390
Melting Onset (Solidus), °C		240

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

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

Otherwise Unclassified Properties

Base Metal Price, % relative		2.0
Base Metal Price, % relative		23

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

Embodied Carbon, kg CO₂/kg material		1.5
Embodied Carbon, kg CO₂/kg material		4.4

Embodied Energy, MJ/kg		20
Embodied Energy, MJ/kg		62

Embodied Water, L/kg		46
Embodied Water, L/kg		880

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m³		400
Resilience: Unit (Modulus of Resilience), kJ/m³		12

Stiffness to Weight: Axial, points		13
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), %		0.51 to 0.59
Carbon (C), %		0

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

Iron (Fe), %		96.2 to 97
Iron (Fe), %		0 to 0.1

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

Manganese (Mn), %		0.7 to 1.0
Manganese (Mn), %		0

Phosphorus (P), %		0 to 0.035
Phosphorus (P), %		0

Silicon (Si), %		1.8 to 2.2
Silicon (Si), %		0

Sulfur (S), %		0 to 0.040
Sulfur (S), %		0

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

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