SAE-AISI 4620 Steel vs. ASTM Grade LC9 Steel
Both SAE-AISI 4620 steel and ASTM grade LC9 steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 28 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 SAE-AISI 4620 steel and the bottom bar is ASTM grade LC9 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 210 | |
| 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 to 27 | |
| 22 |
| Fatigue Strength, MPa | 260 to 360 | |
| 420 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 680 | |
| 660 |
| Tensile Strength: Yield (Proof), MPa | 350 to 550 | |
| 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 430 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 8.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.2 | |
| 8.0 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 2.3 |
| Embodied Energy, MJ/kg | 22 | |
| 31 |
| Embodied Water, L/kg | 50 | |
| 65 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 800 | |
| 920 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 23 |
| Strength to Weight: Bending, points | 18 to 22 | |
| 21 |
| Thermal Shock Resistance, points | 15 to 20 | |
| 20 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.22 | |
| 0 to 0.13 |
| Chromium (Cr), % | 0 | |
| 0 to 0.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 96.4 to 97.4 | |
| 87.4 to 91.5 |
| Manganese (Mn), % | 0.45 to 0.65 | |
| 0 to 0.9 |
| Molybdenum (Mo), % | 0.2 to 0.3 | |
| 0 to 0.2 |
| Nickel (Ni), % | 1.7 to 2.0 | |
| 8.5 to 10 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.45 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.045 |
| Vanadium (V), % | 0 | |
| 0 to 0.030 |