EN 1.1158 Steel vs. ASTM Grade HP Steel
Both EN 1.1158 steel and ASTM grade HP steel are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.1158 steel and the bottom bar is ASTM grade HP steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 150 | |
| 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 23 to 24 | |
| 5.1 |
| Fatigue Strength, MPa | 170 to 220 | |
| 130 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 470 to 500 | |
| 490 |
| Tensile Strength: Yield (Proof), MPa | 240 to 310 | |
| 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1370 |
| Melting Onset (Solidus), °C | 1420 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 49 | |
| 12 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 34 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 5.8 |
| Embodied Energy, MJ/kg | 19 | |
| 82 |
| Embodied Water, L/kg | 47 | |
| 220 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 110 | |
| 21 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 250 | |
| 170 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 18 | |
| 17 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 17 |
| Thermal Diffusivity, mm2/s | 13 | |
| 3.2 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 11 |
Alloy Composition
| Carbon (C), % | 0.22 to 0.29 | |
| 0.35 to 0.75 |
| Chromium (Cr), % | 0 to 0.4 | |
| 24 to 28 |
| Iron (Fe), % | 97.6 to 99.38 | |
| 29.2 to 42.7 |
| Manganese (Mn), % | 0.4 to 0.7 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 to 0.4 | |
| 33 to 37 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 2.5 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.040 |