C38000 Brass vs. C77300 Nickel Silver

Both C38000 brass and C77300 nickel silver are copper alloys. They have 88% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is C77300 nickel silver.

UNS C38000 (CW624N) Leaded Brass UNS C77300 (RBCuZn-D) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.31
Poisson's Ratio		0.3

Shear Modulus, GPa		39
Shear Modulus, GPa		42

Tensile Strength: Ultimate (UTS), MPa		380
Tensile Strength: Ultimate (UTS), MPa		540

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		180

Maximum Temperature: Mechanical, °C		110
Maximum Temperature: Mechanical, °C		130

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		940

Melting Onset (Solidus), °C		760
Melting Onset (Solidus), °C		920

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

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		20

Otherwise Unclassified Properties

Base Metal Price, % relative		22
Base Metal Price, % relative		26

Density, g/cm³		8.0
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		2.7
Embodied Carbon, kg CO₂/kg material		3.5

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		56

Embodied Water, L/kg		330
Embodied Water, L/kg		310

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		20

Strength to Weight: Axial, points		13
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		14
Strength to Weight: Bending, points		19

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		17

Alloy Composition

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Aluminum (Al), %		0 to 0.5
Aluminum (Al), %		0 to 0.010

Copper (Cu), %		55 to 60
Copper (Cu), %		46 to 50

Iron (Fe), %		0 to 0.35
Iron (Fe), %		0

Lead (Pb), %		1.5 to 2.5
Lead (Pb), %		0 to 0.050

Nickel (Ni), %		0
Nickel (Ni), %		9.0 to 11

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.25

Silicon (Si), %		0
Silicon (Si), %		0.040 to 0.25

Tin (Sn), %		0 to 0.3
Tin (Sn), %		0

Zinc (Zn), %		35.9 to 43.5
Zinc (Zn), %		37.9 to 45

Residuals, %		0 to 0.5
Residuals, %		0 to 0.5