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C91700 Bronze vs. Zamak 2

C91700 bronze belongs to the copper alloys classification, while Zamak 2 belongs to the zinc alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C91700 bronze and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
100
Elastic (Young's, Tensile) Modulus, GPa 110
87
Elongation at Break, % 13
6.0
Poisson's Ratio 0.34
0.26
Shear Modulus, GPa 41
33
Tensile Strength: Ultimate (UTS), MPa 330
360
Tensile Strength: Yield (Proof), MPa 170
270

Thermal Properties

Latent Heat of Fusion, J/g 190
130
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 1020
390
Melting Onset (Solidus), °C 850
380
Specific Heat Capacity, J/kg-K 370
410
Thermal Conductivity, W/m-K 71
110
Thermal Expansion, µm/m-K 18
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
25
Electrical Conductivity: Equal Weight (Specific), % IACS 10
35

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 8.7
6.5
Embodied Carbon, kg CO2/kg material 3.9
3.0
Embodied Energy, MJ/kg 63
57
Embodied Water, L/kg 400
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
20
Resilience: Unit (Modulus of Resilience), kJ/m3 140
420
Stiffness to Weight: Axial, points 6.9
7.5
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 11
15
Strength to Weight: Bending, points 12
17
Thermal Diffusivity, mm2/s 22
41
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
3.5 to 4.3
Antimony (Sb), % 0 to 0.2
0
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 84.2 to 87.5
2.5 to 3.3
Iron (Fe), % 0 to 0.2
0 to 0.1
Lead (Pb), % 0 to 0.25
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Nickel (Ni), % 1.2 to 2.0
0 to 0.020
Phosphorus (P), % 0 to 0.3
0
Silicon (Si), % 0 to 0.0050
0 to 0.030
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 11.3 to 12.5
0 to 0.0030
Zinc (Zn), % 0 to 0.25
92.2 to 94