SAE-AISI 4620 Steel vs. AISI 301LN Stainless Steel
Both SAE-AISI 4620 steel and AISI 301LN stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 4620 steel and the bottom bar is AISI 301LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 210 | |
| 210 to 320 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 16 to 27 | |
| 23 to 51 |
| Fatigue Strength, MPa | 260 to 360 | |
| 270 to 520 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 320 to 420 | |
| 450 to 670 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 680 | |
| 630 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 350 to 550 | |
| 270 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 890 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1430 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 47 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.2 | |
| 13 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 22 | |
| 39 |
| Embodied Water, L/kg | 50 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 220 to 290 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 800 | |
| 180 to 1520 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 22 to 38 |
| Strength to Weight: Bending, points | 18 to 22 | |
| 21 to 30 |
| Thermal Diffusivity, mm2/s | 13 | |
| 4.0 |
| Thermal Shock Resistance, points | 15 to 20 | |
| 14 to 24 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.22 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Iron (Fe), % | 96.4 to 97.4 | |
| 70.7 to 77.9 |
| Manganese (Mn), % | 0.45 to 0.65 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.2 to 0.3 | |
| 0 |
| Nickel (Ni), % | 1.7 to 2.0 | |
| 6.0 to 8.0 |
| Nitrogen (N), % | 0 | |
| 0.070 to 0.2 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.045 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.030 |