M20 C10700 Copper vs. M20 C24000 Brass

Both M20 C10700 copper and M20 C24000 brass are copper alloys. Both are furnished in the M20 (as hot rolled) condition. They have 80% of their average alloy composition in common. There are 24 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 M20 C10700 copper and the bottom bar is M20 C24000 brass.

As Hot Rolled (M20) C10700 Copper As Hot Rolled (M20) C24000 Brass

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.34
Poisson's Ratio		0.32

Shear Modulus, GPa		43
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		230
Tensile Strength: Ultimate (UTS), MPa		320

Thermal Properties

Latent Heat of Fusion, J/g		210
Latent Heat of Fusion, J/g		190

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		160

Melting Completion (Liquidus), °C		1080
Melting Completion (Liquidus), °C		1000

Melting Onset (Solidus), °C		1080
Melting Onset (Solidus), °C		970

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

Thermal Conductivity, W/m-K		390
Thermal Conductivity, W/m-K		140

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		100
Electrical Conductivity: Equal Volume, % IACS		32

Electrical Conductivity: Equal Weight (Specific), % IACS		100
Electrical Conductivity: Equal Weight (Specific), % IACS		34

Otherwise Unclassified Properties

Base Metal Price, % relative		35
Base Metal Price, % relative		27

Density, g/cm³		9.0
Density, g/cm³		8.5

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		2.6

Embodied Energy, MJ/kg		42
Embodied Energy, MJ/kg		43

Embodied Water, L/kg		390
Embodied Water, L/kg		320

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		7.2
Strength to Weight: Axial, points		10

Strength to Weight: Bending, points		9.4
Strength to Weight: Bending, points		12

Thermal Diffusivity, mm²/s		110
Thermal Diffusivity, mm²/s		43

Thermal Shock Resistance, points		8.2
Thermal Shock Resistance, points		11

Alloy Composition

Copper (Cu), %		99.83 to 99.915
Copper (Cu), %		78.5 to 81.5

Iron (Fe), %		0
Iron (Fe), %		0 to 0.050

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

Oxygen (O), %		0 to 0.0010
Oxygen (O), %		0

Silver (Ag), %		0.085 to 0.12
Silver (Ag), %		0

Zinc (Zn), %		0
Zinc (Zn), %		18.2 to 21.5

Residuals, %		0
Residuals, %		0 to 0.2