ASTM A204 Steel vs. Nickel 690
ASTM A204 steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys.
For each property being compared, the top bar is ASTM A204 steel and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 180 | |
| 90 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 18 to 22 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 200 to 220 | |
| 180 to 300 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 79 |
| Shear Strength, MPa | 330 to 360 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 590 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 290 to 330 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 1010 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1380 |
| Melting Onset (Solidus), °C | 1420 to 1430 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 52 | |
| 14 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 1.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 1.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 | |
| 50 |
| Density, g/cm3 | 7.9 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 8.2 |
| Embodied Energy, MJ/kg | 20 | |
| 120 |
| Embodied Water, L/kg | 47 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 to 95 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 to 290 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 20 to 27 |
| Thermal Diffusivity, mm2/s | 14 | |
| 3.5 |
| Thermal Shock Resistance, points | 15 to 17 | |
| 16 to 25 |