ASTM A285 Carbon Steel vs. ZA-8
ASTM A285 carbon 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 ASTM A285 carbon steel and the bottom bar is ZA-8.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 110 to 130 | |
| 87 to 100 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 85 to 86 |
| Elongation at Break, % | 30 to 34 | |
| 1.3 to 8.0 |
| Fatigue Strength, MPa | 150 to 180 | |
| 51 to 100 |
| Poisson's Ratio | 0.29 | |
| 0.26 |
| Shear Modulus, GPa | 73 | |
| 34 |
| Shear Strength, MPa | 250 to 290 | |
| 240 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 450 | |
| 210 to 370 |
| Tensile Strength: Yield (Proof), MPa | 190 to 230 | |
| 210 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 110 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 100 |
| Melting Completion (Liquidus), °C | 1470 | |
| 400 |
| Melting Onset (Solidus), °C | 1420 to 1430 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 440 |
| Thermal Conductivity, W/m-K | 53 | |
| 120 |
| Thermal Expansion, µm/m-K | 12 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 40 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 11 |
| Density, g/cm3 | 7.9 | |
| 6.3 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 3.3 |
| Embodied Energy, MJ/kg | 18 | |
| 62 |
| Embodied Water, L/kg | 46 | |
| 420 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 2.8 to 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 94 to 150 | |
| 260 to 490 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 13 to 16 | |
| 9.3 to 17 |
| Strength to Weight: Bending, points | 15 to 17 | |
| 12 to 18 |
| Thermal Diffusivity, mm2/s | 14 | |
| 42 |
| Thermal Shock Resistance, points | 12 to 14 | |
| 7.6 to 13 |