ASTM A387 Grade 22 Steel vs. Grade CW12MW Nickel
ASTM A387 grade 22 steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 22 steel and the bottom bar is grade CW12MW nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 220 |
| Elongation at Break, % | 21 | |
| 4.6 |
| Fatigue Strength, MPa | 160 to 240 | |
| 130 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 85 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 600 | |
| 560 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 960 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1610 |
| Melting Onset (Solidus), °C | 1430 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 410 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.8 | |
| 70 |
| Density, g/cm3 | 7.9 | |
| 9.1 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 13 |
| Embodied Energy, MJ/kg | 23 | |
| 180 |
| Embodied Water, L/kg | 58 | |
| 280 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 85 to 110 | |
| 22 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 320 | |
| 220 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 22 |
| Strength to Weight: Axial, points | 17 to 21 | |
| 17 |
| Strength to Weight: Bending, points | 17 to 20 | |
| 17 |
| Thermal Shock Resistance, points | 14 to 17 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.15 | |
| 0 to 0.12 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 15.5 to 17.5 |
| Iron (Fe), % | 95.1 to 96.8 | |
| 4.5 to 7.5 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 16 to 18 |
| Nickel (Ni), % | 0 | |
| 49.2 to 60.1 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 3.8 to 5.3 |
| Vanadium (V), % | 0 | |
| 0.2 to 0.4 |