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ZA-8 vs. ACI-ASTM CB7Cu-2 Steel

ZA-8 belongs to the zinc alloys classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ZA-8 and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 87 to 100
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 85 to 86
190
Elongation at Break, % 1.3 to 8.0
5.7 to 11
Fatigue Strength, MPa 51 to 100
420 to 590
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 34
75
Tensile Strength: Ultimate (UTS), MPa 210 to 370
960 to 1350
Tensile Strength: Yield (Proof), MPa 210 to 290
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 110
280
Melting Completion (Liquidus), °C 400
1430
Melting Onset (Solidus), °C 380
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 120
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 40
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 6.3
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 62
38
Embodied Water, L/kg 420
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 28
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
1510 to 3600
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 9.3 to 17
34 to 48
Strength to Weight: Bending, points 12 to 18
28 to 35
Thermal Diffusivity, mm2/s 42
4.6
Thermal Shock Resistance, points 7.6 to 13
32 to 45

Alloy Composition

Aluminum (Al), % 8.0 to 8.8
0
Cadmium (Cd), % 0 to 0.0060
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0.8 to 1.3
2.5 to 3.2
Iron (Fe), % 0 to 0.075
73.6 to 79
Lead (Pb), % 0 to 0.0060
0
Magnesium (Mg), % 0.015 to 0.030
0
Manganese (Mn), % 0
0 to 0.7
Nickel (Ni), % 0 to 0.020
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.045
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 89.7 to 91.2
0

Comparable Variants