SAE-AISI D2 Steel vs. ASTM A387 Grade 12 Steel
Both SAE-AISI D2 steel and ASTM A387 grade 12 steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI D2 steel and the bottom bar is ASTM A387 grade 12 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 5.0 to 16 | |
| 25 |
| Fatigue Strength, MPa | 310 to 860 | |
| 190 to 230 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 460 to 1160 | |
| 300 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 2000 | |
| 470 to 520 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1510 | |
| 260 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1470 |
| Melting Onset (Solidus), °C | 1390 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 31 | |
| 44 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.3 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.1 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.0 | |
| 2.8 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 1.6 |
| Embodied Energy, MJ/kg | 50 | |
| 21 |
| Embodied Water, L/kg | 100 | |
| 51 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 2.7 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 92 to 100 | |
| 98 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 5940 | |
| 180 to 250 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 72 | |
| 16 to 18 |
| Strength to Weight: Bending, points | 24 to 46 | |
| 17 to 18 |
| Thermal Diffusivity, mm2/s | 8.3 | |
| 12 |
| Thermal Shock Resistance, points | 25 to 67 | |
| 14 to 15 |
Alloy Composition
| Carbon (C), % | 1.4 to 1.6 | |
| 0.050 to 0.17 |
| Chromium (Cr), % | 11 to 13 | |
| 0.8 to 1.2 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 81.3 to 86.9 | |
| 97 to 98.2 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0.4 to 0.65 |
| Molybdenum (Mo), % | 0.7 to 1.2 | |
| 0.45 to 0.6 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.6 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Vanadium (V), % | 0 to 1.1 | |
| 0 |