C99700 Brass vs. C24000 Brass

Both C99700 brass and C24000 brass are copper alloys. They have 80% 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 C99700 brass and the bottom bar is C24000 brass.

UNS C99700 Manganese White Brass UNS C24000 (CW503L) Low Brass

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.32
Poisson's Ratio		0.32

Shear Modulus, GPa		46
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		380
Tensile Strength: Ultimate (UTS), MPa		310 to 640

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		190

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

Melting Completion (Liquidus), °C		900
Melting Completion (Liquidus), °C		1000

Melting Onset (Solidus), °C		880
Melting Onset (Solidus), °C		970

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		390

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		3.0
Electrical Conductivity: Equal Volume, % IACS		32

Electrical Conductivity: Equal Weight (Specific), % IACS		3.3
Electrical Conductivity: Equal Weight (Specific), % IACS		34

Otherwise Unclassified Properties

Base Metal Price, % relative		25
Base Metal Price, % relative		27

Density, g/cm³		8.1
Density, g/cm³		8.5

Embodied Carbon, kg CO₂/kg material		3.3
Embodied Carbon, kg CO₂/kg material		2.6

Embodied Energy, MJ/kg		53
Embodied Energy, MJ/kg		43

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

Common Calculations

Stiffness to Weight: Axial, points		8.3
Stiffness to Weight: Axial, points		7.2

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

Strength to Weight: Axial, points		13
Strength to Weight: Axial, points		10 to 21

Strength to Weight: Bending, points		14
Strength to Weight: Bending, points		12 to 20

Thermal Shock Resistance, points		11
Thermal Shock Resistance, points		10 to 22

Alloy Composition

Aluminum (Al), %		0.5 to 3.0
Aluminum (Al), %		0

Copper (Cu), %		54 to 65.5
Copper (Cu), %		78.5 to 81.5

Iron (Fe), %		0 to 1.0
Iron (Fe), %		0 to 0.050

Lead (Pb), %		0 to 2.0
Lead (Pb), %		0 to 0.050

Manganese (Mn), %		11 to 15
Manganese (Mn), %		0

Nickel (Ni), %		4.0 to 6.0
Nickel (Ni), %		0

Tin (Sn), %		0 to 1.0
Tin (Sn), %		0

Zinc (Zn), %		19 to 25
Zinc (Zn), %		18.2 to 21.5

Residuals, %		0
Residuals, %		0 to 0.2