EN 1.7725 Steel vs. SAE-AISI 1151 Steel
Both EN 1.7725 steel and SAE-AISI 1151 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.7725 steel and the bottom bar is SAE-AISI 1151 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 250 to 300 | |
| 210 to 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 | |
| 11 to 17 |
| Fatigue Strength, MPa | 390 to 550 | |
| 260 to 410 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1000 | |
| 710 to 800 |
| Tensile Strength: Yield (Proof), MPa | 610 to 860 | |
| 390 to 660 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 400 |
| 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 | 39 | |
| 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 10 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 24 | |
| 18 |
| Embodied Water, L/kg | 54 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 86 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 980 to 1940 | |
| 400 to 1170 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 29 to 35 | |
| 25 to 28 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 22 to 24 |
| Thermal Diffusivity, mm2/s | 11 | |
| 14 |
| Thermal Shock Resistance, points | 24 to 29 | |
| 22 to 25 |
Alloy Composition
| Carbon (C), % | 0.27 to 0.34 | |
| 0.48 to 0.55 |
| Chromium (Cr), % | 1.3 to 1.7 | |
| 0 |
| Iron (Fe), % | 95.7 to 97.5 | |
| 98.3 to 98.7 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0.7 to 1.0 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.080 to 0.13 |
| Vanadium (V), % | 0.050 to 0.15 | |
| 0 |