ASTM A372 Grade J Steel vs. EN 1.7230 Steel
Both ASTM A372 grade J steel and EN 1.7230 steel are iron alloys. Their average alloy composition is basically identical. 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 ASTM A372 grade J steel and the bottom bar is EN 1.7230 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 310 | |
| 220 to 270 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 17 to 22 | |
| 11 to 12 |
| Fatigue Strength, MPa | 310 to 570 | |
| 320 to 460 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 1020 | |
| 720 to 910 |
| Tensile Strength: Yield (Proof), MPa | 430 to 850 | |
| 510 to 740 |
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 | 44 | |
| 44 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 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 | 51 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
| 79 to 97 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 500 to 1930 | |
| 700 to 1460 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 36 | |
| 26 to 32 |
| Strength to Weight: Bending, points | 21 to 29 | |
| 23 to 27 |
| Thermal Diffusivity, mm2/s | 12 | |
| 12 |
| Thermal Shock Resistance, points | 19 to 30 | |
| 21 to 27 |
Alloy Composition
| Carbon (C), % | 0.35 to 0.5 | |
| 0.3 to 0.37 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 0.8 to 1.2 |
| Iron (Fe), % | 96.7 to 97.8 | |
| 96.7 to 98.3 |
| Manganese (Mn), % | 0.75 to 1.1 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0.15 to 0.25 | |
| 0.15 to 0.3 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.025 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |