Nickel 690 vs. SAE-AISI 6150 Steel
Nickel 690 belongs to the nickel alloys classification, while SAE-AISI 6150 steel belongs to the iron alloys.
For each property being compared, the top bar is nickel 690 and the bottom bar is SAE-AISI 6150 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 200 to 350 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 3.4 to 34 | |
| 15 to 23 |
| Fatigue Strength, MPa | 180 to 300 | |
| 300 to 750 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 420 to 570 | |
| 400 to 730 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 630 to 1200 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 420 to 1160 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 420 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1460 |
| Melting Onset (Solidus), °C | 1340 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 46 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 to 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 2.3 |
| Density, g/cm3 | 8.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 2.0 |
| Embodied Energy, MJ/kg | 120 | |
| 28 |
| Embodied Water, L/kg | 290 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 170 | |
| 130 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 460 to 3590 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 22 to 43 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 21 to 32 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 13 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 20 to 38 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.48 to 0.53 |
| Chromium (Cr), % | 27 to 31 | |
| 0.8 to 1.1 |
| Copper (Cu), % | 0 to 0.5 | |
| 0 |
| Iron (Fe), % | 7.0 to 11 | |
| 96.7 to 97.7 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.7 to 0.9 |
| Nickel (Ni), % | 58 to 66 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.040 |
| Vanadium (V), % | 0 | |
| 0.15 to 0.3 |