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C87700 Bronze vs. ZA-12

C87700 bronze belongs to the copper alloys classification, while ZA-12 belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C87700 bronze and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
83
Elongation at Break, % 3.6
1.6 to 5.3
Poisson's Ratio 0.33
0.26
Shear Modulus, GPa 42
33
Tensile Strength: Ultimate (UTS), MPa 300
260 to 400
Tensile Strength: Yield (Proof), MPa 120
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 980
430
Melting Onset (Solidus), °C 900
380
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 18
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
28
Electrical Conductivity: Equal Weight (Specific), % IACS 48
42

Otherwise Unclassified Properties

Base Metal Price, % relative 29
11
Density, g/cm3 8.5
6.0
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 45
64
Embodied Water, L/kg 310
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 64
260 to 620
Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 9.8
12 to 19
Strength to Weight: Bending, points 12
15 to 20
Thermal Diffusivity, mm2/s 34
43
Thermal Shock Resistance, points 11
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Antimony (Sb), % 0 to 0.1
0
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 87.5 to 90.5
0.5 to 1.2
Iron (Fe), % 0 to 0.5
0 to 0.075
Lead (Pb), % 0 to 0.090
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 0.8
0
Nickel (Ni), % 0 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.15
0
Silicon (Si), % 2.5 to 3.5
0 to 0.060
Tin (Sn), % 0 to 2.0
0 to 0.0030
Zinc (Zn), % 7.0 to 9.0
87.1 to 89
Residuals, % 0 to 0.8
0