EN 1.4938 Stainless Steel vs. AISI 301 Stainless Steel
Both EN 1.4938 stainless steel and AISI 301 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 32 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 EN 1.4938 stainless steel and the bottom bar is AISI 301 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 16 to 17 | |
| 7.4 to 46 |
| Fatigue Strength, MPa | 390 to 520 | |
| 210 to 600 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Shear Strength, MPa | 540 to 630 | |
| 410 to 860 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 1030 | |
| 590 to 1460 |
| Tensile Strength: Yield (Proof), MPa | 640 to 870 | |
| 230 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 750 | |
| 840 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1420 |
| Melting Onset (Solidus), °C | 1420 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 16 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.7 |
| Embodied Energy, MJ/kg | 47 | |
| 39 |
| Embodied Water, L/kg | 110 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 99 to 300 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1050 to 1920 | |
| 130 to 2970 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 31 to 37 | |
| 21 to 52 |
| Strength to Weight: Bending, points | 26 to 29 | |
| 20 to 37 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 4.2 |
| Thermal Shock Resistance, points | 30 to 35 | |
| 12 to 31 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.15 | |
| 0 to 0.15 |
| Chromium (Cr), % | 11 to 12.5 | |
| 16 to 18 |
| Iron (Fe), % | 80.5 to 84.8 | |
| 70.7 to 78 |
| Manganese (Mn), % | 0.4 to 0.9 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 1.5 to 2.0 | |
| 0 |
| Nickel (Ni), % | 2.0 to 3.0 | |
| 6.0 to 8.0 |
| Nitrogen (N), % | 0.020 to 0.040 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |
| Vanadium (V), % | 0.25 to 0.4 | |
| 0 |