C68700 Brass vs. Grade 1 Babbitt Metal

C68700 brass belongs to the copper alloys classification, while grade 1 Babbitt Metal belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is grade 1 Babbitt Metal.

UNS C68700 (CW702R) Aluminum Brass Grade 1 (L13910) Tin-Base Babbitt Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		53

Poisson's Ratio		0.32
Poisson's Ratio		0.35

Shear Modulus, GPa		41
Shear Modulus, GPa		20

Tensile Strength: Yield (Proof), MPa		140
Tensile Strength: Yield (Proof), MPa		30

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		70

Melting Completion (Liquidus), °C		970
Melting Completion (Liquidus), °C		370

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		220

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		230

Thermal Conductivity, W/m-K		100
Thermal Conductivity, W/m-K		45

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		23
Electrical Conductivity: Equal Volume, % IACS		13

Electrical Conductivity: Equal Weight (Specific), % IACS		25
Electrical Conductivity: Equal Weight (Specific), % IACS		16

Otherwise Unclassified Properties

Base Metal Price, % relative		26
Base Metal Price, % relative		75

Density, g/cm³		8.3
Density, g/cm³		7.3

Embodied Carbon, kg CO₂/kg material		2.8
Embodied Carbon, kg CO₂/kg material		12

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		200

Embodied Water, L/kg		340
Embodied Water, L/kg		1160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m³		90
Resilience: Unit (Modulus of Resilience), kJ/m³		8.6

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		4.0

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		17

Thermal Diffusivity, mm²/s		30
Thermal Diffusivity, mm²/s		26

Alloy Composition

Aluminum (Al), %		1.8 to 2.5
Aluminum (Al), %		0 to 0.0050

Antimony (Sb), %		0
Antimony (Sb), %		4.0 to 5.0

Arsenic (As), %		0.020 to 0.1
Arsenic (As), %		0 to 0.1

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.080

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

Copper (Cu), %		76 to 79
Copper (Cu), %		4.0 to 5.0

Iron (Fe), %		0 to 0.060
Iron (Fe), %		0 to 0.080

Lead (Pb), %		0 to 0.070
Lead (Pb), %		0 to 0.35

Tin (Sn), %		0
Tin (Sn), %		89.3 to 92

Zinc (Zn), %		17.8 to 22.2
Zinc (Zn), %		0 to 0.0050

Residuals, %		0 to 0.5
Residuals, %		0