EN 1.7216 Steel vs. ASTM A372 Grade J Steel
Both EN 1.7216 steel and ASTM A372 grade J steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.7216 steel and the bottom bar is ASTM A372 grade J steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 280 | |
| 200 to 310 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 23 | |
| 17 to 22 |
| Fatigue Strength, MPa | 290 to 440 | |
| 310 to 570 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 410 to 560 | |
| 410 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 930 | |
| 650 to 1020 |
| Tensile Strength: Yield (Proof), MPa | 400 to 690 | |
| 430 to 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 420 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 46 | |
| 44 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 | |
| 2.4 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.5 |
| Embodied Energy, MJ/kg | 20 | |
| 20 |
| Embodied Water, L/kg | 50 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 130 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 430 to 1280 | |
| 500 to 1930 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 33 | |
| 23 to 36 |
| Strength to Weight: Bending, points | 21 to 27 | |
| 21 to 29 |
| Thermal Diffusivity, mm2/s | 12 | |
| 12 |
| Thermal Shock Resistance, points | 19 to 27 | |
| 19 to 30 |
Alloy Composition
| Carbon (C), % | 0.27 to 0.34 | |
| 0.35 to 0.5 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 0.8 to 1.2 |
| Iron (Fe), % | 97.2 to 98.4 | |
| 96.7 to 97.8 |
| Manganese (Mn), % | 0.35 to 0.6 | |
| 0.75 to 1.1 |
| Molybdenum (Mo), % | 0.15 to 0.3 | |
| 0.15 to 0.25 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.35 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.010 |