C55283 Copper vs. C68400 Brass

Both C55283 copper and C68400 brass are copper alloys. They have 62% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C55283 copper and the bottom bar is C68400 brass.

UNS C55283 (BCuP-4) Filler Metal UNS C68400 Silicon-Manganese Brass

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.34
Poisson's Ratio		0.31

Shear Modulus, GPa		39
Shear Modulus, GPa		41

Tensile Strength: Ultimate (UTS), MPa		190
Tensile Strength: Ultimate (UTS), MPa		540

Thermal Properties

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

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		130

Melting Completion (Liquidus), °C		720
Melting Completion (Liquidus), °C		840

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		820

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

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		20

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		7.9
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		120
Embodied Energy, MJ/kg		47

Common Calculations

Stiffness to Weight: Axial, points		6.8
Stiffness to Weight: Axial, points		7.5

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		20

Strength to Weight: Axial, points		6.1
Strength to Weight: Axial, points		19

Strength to Weight: Bending, points		8.5
Strength to Weight: Bending, points		19

Thermal Shock Resistance, points		8.0
Thermal Shock Resistance, points		18

Alloy Composition

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

Boron (B), %		0
Boron (B), %		0.0010 to 0.030

Copper (Cu), %		86.2 to 87.2
Copper (Cu), %		59 to 64

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

Lead (Pb), %		0
Lead (Pb), %		0 to 0.090

Manganese (Mn), %		0
Manganese (Mn), %		0.2 to 1.5

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.5

Phosphorus (P), %		7.0 to 7.5
Phosphorus (P), %		0.030 to 0.3

Silicon (Si), %		0
Silicon (Si), %		1.5 to 2.5

Silver (Ag), %		5.8 to 6.2
Silver (Ag), %		0

Tin (Sn), %		0
Tin (Sn), %		0 to 0.5

Zinc (Zn), %		0
Zinc (Zn), %		28.6 to 39.3

Residuals, %		0 to 0.15
Residuals, %		0 to 0.5