SAE-AISI 4620 Steel vs. ZA-8
SAE-AISI 4620 steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc 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 SAE-AISI 4620 steel and the bottom bar is ZA-8.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 210 | |
| 87 to 100 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 85 to 86 |
| Elongation at Break, % | 16 to 27 | |
| 1.3 to 8.0 |
| Fatigue Strength, MPa | 260 to 360 | |
| 51 to 100 |
| Poisson's Ratio | 0.29 | |
| 0.26 |
| Shear Modulus, GPa | 73 | |
| 34 |
| Shear Strength, MPa | 320 to 420 | |
| 240 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 680 | |
| 210 to 370 |
| Tensile Strength: Yield (Proof), MPa | 350 to 550 | |
| 210 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 110 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 100 |
| Melting Completion (Liquidus), °C | 1460 | |
| 400 |
| Melting Onset (Solidus), °C | 1420 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 440 |
| Thermal Conductivity, W/m-K | 47 | |
| 120 |
| Thermal Expansion, µm/m-K | 13 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 40 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.2 | |
| 11 |
| Density, g/cm3 | 7.9 | |
| 6.3 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 3.3 |
| Embodied Energy, MJ/kg | 22 | |
| 62 |
| Embodied Water, L/kg | 50 | |
| 420 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 2.8 to 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 800 | |
| 260 to 490 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 9.3 to 17 |
| Strength to Weight: Bending, points | 18 to 22 | |
| 12 to 18 |
| Thermal Diffusivity, mm2/s | 13 | |
| 42 |
| Thermal Shock Resistance, points | 15 to 20 | |
| 7.6 to 13 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 8.0 to 8.8 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 0.17 to 0.22 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.8 to 1.3 |
| Iron (Fe), % | 96.4 to 97.4 | |
| 0 to 0.075 |
| Lead (Pb), % | 0 | |
| 0 to 0.0060 |
| Magnesium (Mg), % | 0 | |
| 0.015 to 0.030 |
| Manganese (Mn), % | 0.45 to 0.65 | |
| 0 |
| Molybdenum (Mo), % | 0.2 to 0.3 | |
| 0 |
| Nickel (Ni), % | 1.7 to 2.0 | |
| 0 to 0.020 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.045 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Zinc (Zn), % | 0 | |
| 89.7 to 91.2 |