SAE-AISI 1080 Steel vs. SAE-AISI 4620 Steel
Both SAE-AISI 1080 steel and SAE-AISI 4620 steel are iron alloys. They have a very high 98% 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 SAE-AISI 1080 steel and the bottom bar is SAE-AISI 4620 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 260 | |
| 150 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 | |
| 16 to 27 |
| Fatigue Strength, MPa | 300 to 360 | |
| 260 to 360 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 73 |
| Shear Strength, MPa | 460 to 520 | |
| 320 to 420 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 870 | |
| 490 to 680 |
| Tensile Strength: Yield (Proof), MPa | 480 to 590 | |
| 350 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 410 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 47 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 9.6 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 11 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 3.2 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.6 |
| Embodied Energy, MJ/kg | 19 | |
| 22 |
| Embodied Water, L/kg | 46 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 80 to 84 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 610 to 920 | |
| 330 to 800 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 31 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 24 to 26 | |
| 18 to 22 |
| Thermal Diffusivity, mm2/s | 14 | |
| 13 |
| Thermal Shock Resistance, points | 25 to 29 | |
| 15 to 20 |
Alloy Composition
| Carbon (C), % | 0.75 to 0.88 | |
| 0.17 to 0.22 |
| Iron (Fe), % | 98.1 to 98.7 | |
| 96.4 to 97.4 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 0 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 | |
| 1.7 to 2.0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.040 |