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C26200 Brass vs. Zamak 7

C26200 brass belongs to the copper alloys classification, while Zamak 7 belongs to the zinc alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C26200 brass and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
86
Elongation at Break, % 3.0 to 180
13
Poisson's Ratio 0.31
0.25
Shear Modulus, GPa 41
33
Shear Strength, MPa 230 to 390
210
Tensile Strength: Ultimate (UTS), MPa 330 to 770
280
Tensile Strength: Yield (Proof), MPa 110 to 490
250

Thermal Properties

Latent Heat of Fusion, J/g 180
120
Maximum Temperature: Mechanical, °C 140
95
Melting Completion (Liquidus), °C 950
390
Melting Onset (Solidus), °C 920
380
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
27
Electrical Conductivity: Equal Weight (Specific), % IACS 31
38

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.2
6.4
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 45
57
Embodied Water, L/kg 320
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 160
36
Resilience: Unit (Modulus of Resilience), kJ/m3 62 to 1110
370
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11 to 26
12
Strength to Weight: Bending, points 13 to 23
15
Thermal Diffusivity, mm2/s 38
43
Thermal Shock Resistance, points 11 to 26
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 67 to 70
0 to 0.25
Iron (Fe), % 0 to 0.050
0 to 0.075
Lead (Pb), % 0 to 0.070
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 0
0.0050 to 0.020
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 29.6 to 33
95.3 to 96.5
Residuals, % 0 to 0.3
0