C35000 Brass vs. C99500 Copper

Both C35000 brass and C99500 copper are copper alloys. They have 63% of their average alloy composition in common. There are 22 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 C35000 brass and the bottom bar is C99500 copper.

UNS C35000 Leaded Brass UNS C99500 Nickel-Iron Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.31
Poisson's Ratio		0.34

Shear Modulus, GPa		40
Shear Modulus, GPa		45

Tensile Strength: Ultimate (UTS), MPa		340 to 650
Tensile Strength: Ultimate (UTS), MPa		540

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		240

Maximum Temperature: Mechanical, °C		120
Maximum Temperature: Mechanical, °C		210

Melting Completion (Liquidus), °C		920
Melting Completion (Liquidus), °C		1090

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		1040

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		400

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		26
Electrical Conductivity: Equal Volume, % IACS		10

Electrical Conductivity: Equal Weight (Specific), % IACS		29
Electrical Conductivity: Equal Weight (Specific), % IACS		10

Otherwise Unclassified Properties

Base Metal Price, % relative		23
Base Metal Price, % relative		30

Density, g/cm³		8.1
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		3.0

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		47

Embodied Water, L/kg		320
Embodied Water, L/kg		300

Common Calculations

Stiffness to Weight: Axial, points		7.1
Stiffness to Weight: Axial, points		7.7

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

Strength to Weight: Axial, points		12 to 22
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		13 to 21
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		11 to 22
Thermal Shock Resistance, points		19

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0.5 to 2.0

Copper (Cu), %		60 to 63
Copper (Cu), %		82.5 to 92

Iron (Fe), %		0 to 0.1
Iron (Fe), %		3.0 to 5.0

Lead (Pb), %		0.8 to 2.0
Lead (Pb), %		0 to 0.25

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

Nickel (Ni), %		0
Nickel (Ni), %		3.5 to 5.5

Silicon (Si), %		0
Silicon (Si), %		0.5 to 2.0

Zinc (Zn), %		34.5 to 39.2
Zinc (Zn), %		0.5 to 2.0

Residuals, %		0
Residuals, %		0 to 0.3