ASTM A372 Grade H Steel vs. EN 1.7233 Steel
Both ASTM A372 grade H steel and EN 1.7233 steel are iron alloys. They have a very high 99% of their average alloy composition in common. 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 A372 grade H steel and the bottom bar is EN 1.7233 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 280 | |
| 210 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 22 | |
| 18 to 23 |
| Fatigue Strength, MPa | 310 to 380 | |
| 270 to 530 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 410 to 570 | |
| 450 to 590 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 910 | |
| 700 to 960 |
| Tensile Strength: Yield (Proof), MPa | 430 to 550 | |
| 380 to 780 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 430 |
| 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 | 45 | |
| 39 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 3.0 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.6 |
| Embodied Energy, MJ/kg | 20 | |
| 21 |
| Embodied Water, L/kg | 49 | |
| 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 160 | |
| 110 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 500 to 810 | |
| 380 to 1630 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 32 | |
| 25 to 34 |
| Strength to Weight: Bending, points | 21 to 27 | |
| 22 to 28 |
| Thermal Diffusivity, mm2/s | 12 | |
| 11 |
| Thermal Shock Resistance, points | 19 to 27 | |
| 21 to 28 |
Alloy Composition
| Carbon (C), % | 0.3 to 0.4 | |
| 0.39 to 0.45 |
| Chromium (Cr), % | 0.4 to 0.65 | |
| 1.2 to 1.5 |
| Iron (Fe), % | 97.3 to 98.3 | |
| 96.2 to 97.5 |
| Manganese (Mn), % | 0.75 to 1.1 | |
| 0.4 to 0.7 |
| Molybdenum (Mo), % | 0.15 to 0.25 | |
| 0.5 to 0.7 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.025 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.035 |