ZA-12 vs. C55281 Copper

ZA-12 belongs to the zinc alloys classification, while C55281 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is ZA-12 and the bottom bar is C55281 copper.

Zinc-Aluminum 12 (ZA-12, Z35631)UNS C55281 (BCuP-3) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		83
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.26
Poisson's Ratio		0.34

Shear Modulus, GPa		33
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		260 to 400
Tensile Strength: Ultimate (UTS), MPa		190

Thermal Properties

Latent Heat of Fusion, J/g		120
Latent Heat of Fusion, J/g		190

Maximum Temperature: Mechanical, °C		100
Maximum Temperature: Mechanical, °C		200

Melting Completion (Liquidus), °C		430
Melting Completion (Liquidus), °C		810

Melting Onset (Solidus), °C		380
Melting Onset (Solidus), °C		640

Specific Heat Capacity, J/kg-K		450
Specific Heat Capacity, J/kg-K		400

Thermal Expansion, µm/m-K		24
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Density, g/cm³		6.0
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		3.4
Embodied Carbon, kg CO₂/kg material		7.0

Embodied Energy, MJ/kg		64
Embodied Energy, MJ/kg		110

Common Calculations

Stiffness to Weight: Axial, points		7.6
Stiffness to Weight: Axial, points		6.9

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		12 to 19
Strength to Weight: Axial, points		6.1

Strength to Weight: Bending, points		15 to 20
Strength to Weight: Bending, points		8.5

Thermal Shock Resistance, points		9.4 to 14
Thermal Shock Resistance, points		7.7

Alloy Composition

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Aluminum (Al), %		10.5 to 11.5
Aluminum (Al), %		0

Cadmium (Cd), %		0 to 0.0060
Cadmium (Cd), %		0

Copper (Cu), %		0.5 to 1.2
Copper (Cu), %		88.5 to 89.4

Iron (Fe), %		0 to 0.075
Iron (Fe), %		0

Lead (Pb), %		0 to 0.0060
Lead (Pb), %		0

Magnesium (Mg), %		0.015 to 0.030
Magnesium (Mg), %		0

Nickel (Ni), %		0 to 0.020
Nickel (Ni), %		0

Phosphorus (P), %		0
Phosphorus (P), %		5.8 to 6.2

Silicon (Si), %		0 to 0.060
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		4.8 to 5.2

Tin (Sn), %		0 to 0.0030
Tin (Sn), %		0

Zinc (Zn), %		87.1 to 89
Zinc (Zn), %		0

Residuals, %		0
Residuals, %		0 to 0.15