C53400 Bronze vs. C68000 Brass

Both C53400 bronze and C68000 brass are copper alloys. They have 59% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C53400 bronze and the bottom bar is C68000 brass.

UNS C53400 (CW458K) Leaded Phosphor Bronze UNS C68000 (RBCuZn-B) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		100

Poisson's Ratio		0.34
Poisson's Ratio		0.3

Shear Modulus, GPa		42
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		330 to 720
Tensile Strength: Ultimate (UTS), MPa		390

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		170

Maximum Temperature: Mechanical, °C		180
Maximum Temperature: Mechanical, °C		120

Melting Completion (Liquidus), °C		1050
Melting Completion (Liquidus), °C		880

Melting Onset (Solidus), °C		950
Melting Onset (Solidus), °C		870

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		69
Thermal Conductivity, W/m-K		96

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		21

Otherwise Unclassified Properties

Base Metal Price, % relative		32
Base Metal Price, % relative		23

Density, g/cm³		8.9
Density, g/cm³		8.0

Embodied Carbon, kg CO₂/kg material		3.0
Embodied Carbon, kg CO₂/kg material		2.8

Embodied Energy, MJ/kg		49
Embodied Energy, MJ/kg		48

Embodied Water, L/kg		350
Embodied Water, L/kg		330

Common Calculations

Stiffness to Weight: Axial, points		7.0
Stiffness to Weight: Axial, points		7.3

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		20

Strength to Weight: Axial, points		10 to 22
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		12 to 20
Strength to Weight: Bending, points		15

Thermal Diffusivity, mm²/s		21
Thermal Diffusivity, mm²/s		31

Thermal Shock Resistance, points		12 to 26
Thermal Shock Resistance, points		13

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.010

Copper (Cu), %		91.8 to 95.7
Copper (Cu), %		56 to 60

Iron (Fe), %		0 to 0.1
Iron (Fe), %		0.25 to 1.3

Lead (Pb), %		0.8 to 1.2
Lead (Pb), %		0 to 0.050

Manganese (Mn), %		0
Manganese (Mn), %		0.010 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		0.2 to 0.8

Phosphorus (P), %		0.030 to 0.35
Phosphorus (P), %		0

Silicon (Si), %		0
Silicon (Si), %		0.040 to 0.15

Tin (Sn), %		3.5 to 5.8
Tin (Sn), %		0.75 to 1.1

Zinc (Zn), %		0 to 0.3
Zinc (Zn), %		35.6 to 42.8

Residuals, %		0
Residuals, %		0 to 0.5