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Zamak 7 vs. C99400 Brass

Zamak 7 belongs to the zinc alloys classification, while C99400 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is C99400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
120
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 33
44
Tensile Strength: Ultimate (UTS), MPa 280
460 to 550
Tensile Strength: Yield (Proof), MPa 250
230 to 370

Thermal Properties

Latent Heat of Fusion, J/g 120
230
Maximum Temperature: Mechanical, °C 95
200
Melting Completion (Liquidus), °C 390
1070
Melting Onset (Solidus), °C 380
1020
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 27
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
30
Density, g/cm3 6.4
8.7
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 57
45
Embodied Water, L/kg 380
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 370
230 to 590
Stiffness to Weight: Axial, points 7.5
7.5
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 12
15 to 17
Strength to Weight: Bending, points 15
15 to 17
Thermal Shock Resistance, points 8.6
16 to 19

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0.5 to 2.0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
83.5 to 96.5
Iron (Fe), % 0 to 0.075
1.0 to 3.0
Lead (Pb), % 0 to 0.0030
0 to 0.25
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0.0050 to 0.020
1.0 to 3.5
Silicon (Si), % 0
0.5 to 2.0
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0.5 to 5.0
Residuals, % 0
0 to 0.3