C35300 Brass vs. C68000 Brass

Both C35300 brass and C68000 brass are copper alloys. They have a moderately high 95% 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 C35300 brass and the bottom bar is C68000 brass.

UNS C35300 (CW606N) Leaded Brass UNS C68000 (RBCuZn-B) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.31
Poisson's Ratio		0.3

Shear Modulus, GPa		39
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		340 to 650
Tensile Strength: Ultimate (UTS), MPa		390

Thermal Properties

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

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

Melting Completion (Liquidus), °C		910
Melting Completion (Liquidus), °C		880

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		870

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

Thermal Conductivity, W/m-K		120
Thermal Conductivity, W/m-K		96

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

Otherwise Unclassified Properties

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

Density, g/cm³		8.1
Density, g/cm³		8.0

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		2.8

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		48

Embodied Water, L/kg		320
Embodied Water, L/kg		330

Common Calculations

Stiffness to Weight: Axial, points		7.1
Stiffness to Weight: Axial, points		7.3

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		20

Strength to Weight: Axial, points		12 to 22
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		13 to 21
Strength to Weight: Bending, points		15

Thermal Diffusivity, mm²/s		38
Thermal Diffusivity, mm²/s		31

Thermal Shock Resistance, points		11 to 22
Thermal Shock Resistance, points		13

Alloy Composition

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

Copper (Cu), %		60 to 63
Copper (Cu), %		56 to 60

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

Lead (Pb), %		1.5 to 2.5
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

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

Tin (Sn), %		0
Tin (Sn), %		0.75 to 1.1

Zinc (Zn), %		33.9 to 38.5
Zinc (Zn), %		35.6 to 42.8

Residuals, %		0
Residuals, %		0 to 0.5