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CC767S Brass vs. ZA-8

CC767S brass belongs to the copper alloys classification, while ZA-8 belongs to the zinc alloys. They have a modest 39% 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 CC767S brass and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 110
85 to 86
Elongation at Break, % 34
1.3 to 8.0
Poisson's Ratio 0.31
0.26
Shear Modulus, GPa 40
34
Tensile Strength: Ultimate (UTS), MPa 430
210 to 370
Tensile Strength: Yield (Proof), MPa 150
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 180
110
Maximum Temperature: Mechanical, °C 120
100
Melting Completion (Liquidus), °C 840
400
Melting Onset (Solidus), °C 790
380
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
28
Electrical Conductivity: Equal Weight (Specific), % IACS 36
40

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 8.0
6.3
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 47
62
Embodied Water, L/kg 330
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 100
260 to 490
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 15
9.3 to 17
Strength to Weight: Bending, points 16
12 to 18
Thermal Diffusivity, mm2/s 34
42
Thermal Shock Resistance, points 14
7.6 to 13

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 58 to 64
0.8 to 1.3
Iron (Fe), % 0 to 0.5
0 to 0.075
Lead (Pb), % 0 to 0.1
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.045
Tin (Sn), % 0 to 0.1
0 to 0.0030
Zinc (Zn), % 32.8 to 41.9
89.7 to 91.2