EN 1.4606 Stainless Steel vs. SAE-AISI 4340 Steel
Both EN 1.4606 stainless steel and SAE-AISI 4340 steel are iron alloys. They have 58% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4606 stainless steel and the bottom bar is SAE-AISI 4340 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 23 to 39 | |
| 12 to 22 |
| Fatigue Strength, MPa | 240 to 420 | |
| 330 to 740 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 410 to 640 | |
| 430 to 770 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 1020 | |
| 690 to 1280 |
| Tensile Strength: Yield (Proof), MPa | 280 to 630 | |
| 470 to 1150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 910 | |
| 430 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 44 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.9 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.2 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 3.5 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 6.0 | |
| 1.7 |
| Embodied Energy, MJ/kg | 87 | |
| 22 |
| Embodied Water, L/kg | 170 | |
| 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 200 | |
| 79 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 200 to 1010 | |
| 590 to 3490 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 36 | |
| 24 to 45 |
| Strength to Weight: Bending, points | 20 to 28 | |
| 22 to 33 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 12 |
| Thermal Shock Resistance, points | 21 to 35 | |
| 20 to 38 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.35 | |
| 0 |
| Boron (B), % | 0.0010 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 13 to 16 | |
| 0.7 to 0.9 |
| Iron (Fe), % | 49.2 to 59 | |
| 95.1 to 96.3 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0.6 to 0.8 |
| Molybdenum (Mo), % | 1.0 to 1.5 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 24 to 27 | |
| 1.7 to 2.0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.040 |
| Titanium (Ti), % | 1.9 to 2.3 | |
| 0 |
| Vanadium (V), % | 0.1 to 0.5 | |
| 0 |