Nickel 690 vs. ASTM A387 Grade 2 Steel
Nickel 690 belongs to the nickel alloys classification, while ASTM A387 grade 2 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is nickel 690 and the bottom bar is ASTM A387 grade 2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 140 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 3.4 to 34 | |
| 25 |
| Fatigue Strength, MPa | 180 to 300 | |
| 190 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 420 to 570 | |
| 300 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 470 to 550 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 260 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 420 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1470 |
| Melting Onset (Solidus), °C | 1340 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 45 |
| 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 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 2.6 |
| Density, g/cm3 | 8.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 1.6 |
| Embodied Energy, MJ/kg | 120 | |
| 20 |
| Embodied Water, L/kg | 290 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 170 | |
| 98 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 180 to 320 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 16 to 20 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 17 to 19 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 12 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 14 to 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.050 to 0.21 |
| Chromium (Cr), % | 27 to 31 | |
| 0.5 to 0.8 |
| Copper (Cu), % | 0 to 0.5 | |
| 0 |
| Iron (Fe), % | 7.0 to 11 | |
| 97.1 to 98.3 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.55 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0.45 to 0.6 |
| Nickel (Ni), % | 58 to 66 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |