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