Nickel 718 vs. ASTM A204 Steel
Nickel 718 belongs to the nickel alloys classification, while ASTM A204 steel belongs to the iron alloys. There are 30 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 nickel 718 and the bottom bar is ASTM A204 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 50 | |
| 18 to 22 |
| Fatigue Strength, MPa | 460 to 760 | |
| 200 to 220 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 660 to 950 | |
| 330 to 360 |
| Tensile Strength: Ultimate (UTS), MPa | 930 to 1530 | |
| 520 to 590 |
| Tensile Strength: Yield (Proof), MPa | 510 to 1330 | |
| 290 to 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 410 |
| Melting Completion (Liquidus), °C | 1340 | |
| 1470 |
| Melting Onset (Solidus), °C | 1260 | |
| 1420 to 1430 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 11 | |
| 52 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.4 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.5 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 2.4 |
| Density, g/cm3 | 8.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 13 | |
| 1.5 |
| Embodied Energy, MJ/kg | 190 | |
| 20 |
| Embodied Water, L/kg | 250 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 390 | |
| 90 to 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 660 to 4560 | |
| 220 to 290 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 31 to 51 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 25 to 35 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 14 |
| Thermal Shock Resistance, points | 27 to 44 | |
| 15 to 17 |