ZA-27 vs. SAE-AISI 8740 Steel
ZA-27 belongs to the zinc alloys classification, while SAE-AISI 8740 steel belongs to the iron alloys. There are 31 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 ZA-27 and the bottom bar is SAE-AISI 8740 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 100 to 120 | |
| 170 to 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 190 |
| Elongation at Break, % | 2.0 to 4.5 | |
| 11 to 23 |
| Fatigue Strength, MPa | 110 to 170 | |
| 270 to 350 |
| Poisson's Ratio | 0.27 | |
| 0.29 |
| Shear Modulus, GPa | 31 | |
| 73 |
| Shear Strength, MPa | 230 to 330 | |
| 370 to 400 |
| Tensile Strength: Ultimate (UTS), MPa | 400 to 430 | |
| 580 to 670 |
| Tensile Strength: Yield (Proof), MPa | 260 to 370 | |
| 380 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 410 |
| Melting Completion (Liquidus), °C | 480 | |
| 1460 |
| Melting Onset (Solidus), °C | 380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 530 | |
| 470 |
| Thermal Conductivity, W/m-K | 130 | |
| 39 |
| Thermal Expansion, µm/m-K | 26 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 30 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 53 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 2.6 |
| Density, g/cm3 | 5.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.2 | |
| 1.5 |
| Embodied Energy, MJ/kg | 80 | |
| 20 |
| Embodied Water, L/kg | 570 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 8.1 to 18 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 420 to 890 | |
| 390 to 850 |
| Stiffness to Weight: Axial, points | 8.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 28 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 24 | |
| 20 to 24 |
| Strength to Weight: Bending, points | 24 to 25 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 47 | |
| 10 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 17 to 20 |
Alloy Composition
| Aluminum (Al), % | 25 to 28 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0060 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.6 |
| Copper (Cu), % | 2.0 to 2.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 96.5 to 97.7 |
| Lead (Pb), % | 0 to 0.0060 | |
| 0 |
| Magnesium (Mg), % | 0.010 to 0.020 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.75 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 to 0.020 | |
| 0.4 to 0.7 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.080 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Tin (Sn), % | 0 to 0.0030 | |
| 0 |
| Zinc (Zn), % | 69.3 to 73 | |
| 0 |