SAE-AISI 4620 Steel vs. SAE-AISI 1137 Steel
Both SAE-AISI 4620 steel and SAE-AISI 1137 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 4620 steel and the bottom bar is SAE-AISI 1137 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 210 | |
| 200 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 to 27 | |
| 11 to 17 |
| Fatigue Strength, MPa | 260 to 360 | |
| 250 to 400 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 320 to 420 | |
| 430 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 680 | |
| 700 to 760 |
| Tensile Strength: Yield (Proof), MPa | 350 to 550 | |
| 370 to 650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 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 | 47 | |
| 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 10 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.2 | |
| 1.9 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 22 | |
| 19 |
| Embodied Water, L/kg | 50 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 81 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 800 | |
| 360 to 1130 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 25 to 27 |
| Strength to Weight: Bending, points | 18 to 22 | |
| 22 to 24 |
| Thermal Diffusivity, mm2/s | 13 | |
| 14 |
| Thermal Shock Resistance, points | 15 to 20 | |
| 21 to 23 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.22 | |
| 0.32 to 0.39 |
| Iron (Fe), % | 96.4 to 97.4 | |
| 97.8 to 98.3 |
| Manganese (Mn), % | 0.45 to 0.65 | |
| 1.4 to 1.7 |
| Molybdenum (Mo), % | 0.2 to 0.3 | |
| 0 |
| Nickel (Ni), % | 1.7 to 2.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0.080 to 0.13 |