Nickel 601 vs. ASTM A387 Grade 21 Steel
Nickel 601 belongs to the nickel alloys classification, while ASTM A387 grade 21 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is nickel 601 and the bottom bar is ASTM A387 grade 21 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 10 to 38 | |
| 21 |
| Fatigue Strength, MPa | 220 to 380 | |
| 160 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 74 |
| Shear Strength, MPa | 440 to 530 | |
| 310 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 890 | |
| 500 to 590 |
| Tensile Strength: Yield (Proof), MPa | 290 to 800 | |
| 230 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 480 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1470 |
| Melting Onset (Solidus), °C | 1360 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 11 | |
| 41 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 49 | |
| 4.1 |
| Density, g/cm3 | 8.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 1.8 |
| Embodied Energy, MJ/kg | 110 | |
| 23 |
| Embodied Water, L/kg | 280 | |
| 62 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 200 | |
| 84 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 1630 | |
| 140 to 320 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 30 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 20 to 25 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 2.8 | |
| 11 |
| Thermal Shock Resistance, points | 17 to 23 | |
| 14 to 17 |
Alloy Composition
| Aluminum (Al), % | 1.0 to 1.7 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0.050 to 0.15 |
| Chromium (Cr), % | 21 to 25 | |
| 2.8 to 3.3 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 7.7 to 20 | |
| 94.4 to 96 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 58 to 63 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |