Nickel 690 vs. ASTM A302 Alloy Steel
Nickel 690 belongs to the nickel alloys classification, while ASTM A302 alloy steel belongs to the iron alloys.
For each property being compared, the top bar is nickel 690 and the bottom bar is ASTM A302 alloy steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 180 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 3.4 to 34 | |
| 20 to 23 |
| Fatigue Strength, MPa | 180 to 300 | |
| 250 to 280 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 420 to 570 | |
| 370 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 590 to 620 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 350 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 410 |
| 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 | |
| 39 to 51 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 7.2 to 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 8.2 to 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 2.4 to 3.0 |
| Density, g/cm3 | 8.3 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 1.5 to 1.6 |
| Embodied Energy, MJ/kg | 120 | |
| 20 to 21 |
| Embodied Water, L/kg | 290 | |
| 48 to 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 170 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 330 to 410 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 21 to 22 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 20 to 21 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 17 to 18 |