C69700 Brass vs. C99400 Brass

Both C69700 brass and C99400 brass are copper alloys. They have 82% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C69700 brass and the bottom bar is C99400 brass.

UNS C69700 Leaded Silicon Brass UNS C99400 Brass

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		41
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		470
Tensile Strength: Ultimate (UTS), MPa		460 to 550

Tensile Strength: Yield (Proof), MPa		230
Tensile Strength: Yield (Proof), MPa		230 to 370

Thermal Properties

Latent Heat of Fusion, J/g		240
Latent Heat of Fusion, J/g		230

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

Melting Completion (Liquidus), °C		930
Melting Completion (Liquidus), °C		1070

Melting Onset (Solidus), °C		880
Melting Onset (Solidus), °C		1020

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

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

Otherwise Unclassified Properties

Base Metal Price, % relative		26
Base Metal Price, % relative		30

Density, g/cm³		8.3
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		2.8

Embodied Energy, MJ/kg		44
Embodied Energy, MJ/kg		45

Embodied Water, L/kg		310
Embodied Water, L/kg		310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m³		250
Resilience: Unit (Modulus of Resilience), kJ/m³		230 to 590

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		7.5

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

Strength to Weight: Axial, points		16
Strength to Weight: Axial, points		15 to 17

Strength to Weight: Bending, points		16
Strength to Weight: Bending, points		15 to 17

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		16 to 19

Alloy Composition

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

Copper (Cu), %		75 to 80
Copper (Cu), %		83.5 to 96.5

Iron (Fe), %		0 to 0.2
Iron (Fe), %		1.0 to 3.0

Lead (Pb), %		0.5 to 1.5
Lead (Pb), %		0 to 0.25

Manganese (Mn), %		0 to 0.4
Manganese (Mn), %		0 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		1.0 to 3.5

Silicon (Si), %		2.5 to 3.5
Silicon (Si), %		0.5 to 2.0

Zinc (Zn), %		13.9 to 22
Zinc (Zn), %		0.5 to 5.0

Residuals, %		0
Residuals, %		0 to 0.3