ASTM A387 Grade 12 Steel vs. EN 1.7216 Steel
Both ASTM A387 grade 12 steel and EN 1.7216 steel are iron alloys. Their average alloy composition is basically identical. 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 ASTM A387 grade 12 steel and the bottom bar is EN 1.7216 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 160 | |
| 200 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 25 | |
| 12 to 23 |
| Fatigue Strength, MPa | 190 to 230 | |
| 290 to 440 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 300 to 330 | |
| 410 to 560 |
| Tensile Strength: Ultimate (UTS), MPa | 470 to 520 | |
| 650 to 930 |
| Tensile Strength: Yield (Proof), MPa | 260 to 310 | |
| 400 to 690 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 420 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 44 | |
| 46 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.8 | |
| 2.4 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 1.5 |
| Embodied Energy, MJ/kg | 21 | |
| 20 |
| Embodied Water, L/kg | 51 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 110 | |
| 110 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 to 250 | |
| 430 to 1280 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 18 | |
| 23 to 33 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 21 to 27 |
| Thermal Diffusivity, mm2/s | 12 | |
| 12 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 19 to 27 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.17 | |
| 0.27 to 0.34 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 0.8 to 1.2 |
| Iron (Fe), % | 97 to 98.2 | |
| 97.2 to 98.4 |
| Manganese (Mn), % | 0.4 to 0.65 | |
| 0.35 to 0.6 |
| Molybdenum (Mo), % | 0.45 to 0.6 | |
| 0.15 to 0.3 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 0.15 to 0.4 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.035 |