EN 1.5508 Steel vs. SAE-AISI 1080 Steel
Both EN 1.5508 steel and SAE-AISI 1080 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.5508 steel and the bottom bar is SAE-AISI 1080 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 180 | |
| 220 to 260 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 20 | |
| 11 |
| Fatigue Strength, MPa | 210 to 320 | |
| 300 to 360 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 62 to 74 | |
| 28 to 45 |
| Shear Modulus, GPa | 73 | |
| 72 |
| Shear Strength, MPa | 300 to 360 | |
| 460 to 520 |
| Tensile Strength: Ultimate (UTS), MPa | 420 to 1460 | |
| 770 to 870 |
| Tensile Strength: Yield (Proof), MPa | 310 to 490 | |
| 480 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 9.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 19 | |
| 19 |
| Embodied Water, L/kg | 47 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 to 230 | |
| 80 to 84 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 640 | |
| 610 to 920 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 15 to 52 | |
| 27 to 31 |
| Strength to Weight: Bending, points | 16 to 36 | |
| 24 to 26 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 12 to 43 | |
| 25 to 29 |
Alloy Composition
| Boron (B), % | 0.00080 to 0.0050 | |
| 0 |
| Carbon (C), % | 0.2 to 0.25 | |
| 0.75 to 0.88 |
| Chromium (Cr), % | 0 to 0.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 97.9 to 99.199 | |
| 98.1 to 98.7 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0.6 to 0.9 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.050 |