Nickel 690 vs. ASTM A572 Steel
Nickel 690 belongs to the nickel alloys classification, while ASTM A572 steel belongs to the iron alloys.
For each property being compared, the top bar is nickel 690 and the bottom bar is ASTM A572 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 140 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 3.4 to 34 | |
| 18 to 25 |
| Fatigue Strength, MPa | 180 to 300 | |
| 240 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 420 to 570 | |
| 300 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 470 to 620 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 330 to 510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 400 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1460 |
| Melting Onset (Solidus), °C | 1340 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 51 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 8.2 to 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 2.0 |
| Density, g/cm3 | 8.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 1.6 |
| Embodied Energy, MJ/kg | 120 | |
| 22 |
| Embodied Water, L/kg | 290 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 170 | |
| 100 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 290 to 690 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 17 to 22 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 17 to 21 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 14 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 14 to 18 |