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C49300 Brass vs. Zamak 7

C49300 brass belongs to the copper alloys classification, while Zamak 7 belongs to the zinc alloys. They have a modest 36% 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 (5, in this case) are not shown.

For each property being compared, the top bar is C49300 brass and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
86
Elongation at Break, % 4.5 to 20
13
Poisson's Ratio 0.31
0.25
Shear Modulus, GPa 40
33
Shear Strength, MPa 270 to 290
210
Tensile Strength: Ultimate (UTS), MPa 430 to 520
280
Tensile Strength: Yield (Proof), MPa 210 to 410
250

Thermal Properties

Latent Heat of Fusion, J/g 170
120
Maximum Temperature: Mechanical, °C 120
95
Melting Completion (Liquidus), °C 880
390
Melting Onset (Solidus), °C 840
380
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 88
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
27
Electrical Conductivity: Equal Weight (Specific), % IACS 17
38

Otherwise Unclassified Properties

Base Metal Price, % relative 26
11
Density, g/cm3 8.0
6.4
Embodied Carbon, kg CO2/kg material 3.0
3.0
Embodied Energy, MJ/kg 50
57
Embodied Water, L/kg 370
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 71
36
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 800
370
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 15 to 18
12
Strength to Weight: Bending, points 16 to 18
15
Thermal Diffusivity, mm2/s 29
43
Thermal Shock Resistance, points 14 to 18
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.5
3.5 to 4.3
Antimony (Sb), % 0 to 0.5
0
Bismuth (Bi), % 0.5 to 2.0
0
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 58 to 62
0 to 0.25
Iron (Fe), % 0 to 0.1
0 to 0.075
Lead (Pb), % 0 to 0.010
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0 to 1.5
0.0050 to 0.020
Phosphorus (P), % 0 to 0.2
0
Selenium (Se), % 0 to 0.2
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 1.0 to 1.8
0 to 0.0010
Zinc (Zn), % 30.6 to 40.5
95.3 to 96.5
Residuals, % 0 to 0.5
0