ZA-27 vs. S21904 Stainless Steel
ZA-27 belongs to the zinc alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 31 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 ZA-27 and the bottom bar is S21904 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 100 to 120 | |
| 210 to 300 |
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 200 |
| Elongation at Break, % | 2.0 to 4.5 | |
| 17 to 51 |
| Fatigue Strength, MPa | 110 to 170 | |
| 380 to 550 |
| Poisson's Ratio | 0.27 | |
| 0.28 |
| Shear Modulus, GPa | 31 | |
| 78 |
| Shear Strength, MPa | 230 to 330 | |
| 510 to 620 |
| Tensile Strength: Ultimate (UTS), MPa | 400 to 430 | |
| 700 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 260 to 370 | |
| 390 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 980 |
| Melting Completion (Liquidus), °C | 480 | |
| 1400 |
| Melting Onset (Solidus), °C | 380 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 530 | |
| 480 |
| Thermal Conductivity, W/m-K | 130 | |
| 14 |
| Thermal Expansion, µm/m-K | 26 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 30 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 53 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 15 |
| Density, g/cm3 | 5.0 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 4.2 | |
| 3.0 |
| Embodied Energy, MJ/kg | 80 | |
| 43 |
| Embodied Water, L/kg | 570 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 8.1 to 18 | |
| 160 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 420 to 890 | |
| 380 to 2070 |
| Stiffness to Weight: Axial, points | 8.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 28 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 24 | |
| 25 to 36 |
| Strength to Weight: Bending, points | 24 to 25 | |
| 23 to 29 |
| Thermal Diffusivity, mm2/s | 47 | |
| 3.8 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 15 to 21 |
Alloy Composition
| Aluminum (Al), % | 25 to 28 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0060 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.040 |
| Chromium (Cr), % | 0 | |
| 19 to 21.5 |
| Copper (Cu), % | 2.0 to 2.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 59.5 to 67.4 |
| Lead (Pb), % | 0 to 0.0060 | |
| 0 |
| Magnesium (Mg), % | 0.010 to 0.020 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 8.0 to 10 |
| Nickel (Ni), % | 0 to 0.020 | |
| 5.5 to 7.5 |
| Nitrogen (N), % | 0 | |
| 0.15 to 0.4 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.080 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 0 to 0.0030 | |
| 0 |
| Zinc (Zn), % | 69.3 to 73 | |
| 0 |