EN 1.4938 Stainless Steel vs. EN 1.4477 Stainless Steel
Both EN 1.4938 stainless steel and EN 1.4477 stainless steel are iron alloys. They have 77% 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 EN 1.4477 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 210 |
| Elongation at Break, % | 16 to 17 | |
| 22 to 23 |
| Fatigue Strength, MPa | 390 to 520 | |
| 420 to 490 |
| Poisson's Ratio | 0.28 | |
| 0.27 |
| Shear Modulus, GPa | 76 | |
| 81 |
| Shear Strength, MPa | 540 to 630 | |
| 550 to 580 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 1030 | |
| 880 to 930 |
| Tensile Strength: Yield (Proof), MPa | 640 to 870 | |
| 620 to 730 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 300 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 460 |
| Maximum Temperature: Mechanical, °C | 750 | |
| 1100 |
| 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 | 30 | |
| 13 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 20 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 3.7 |
| Embodied Energy, MJ/kg | 47 | |
| 52 |
| Embodied Water, L/kg | 110 | |
| 190 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 41 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 180 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1050 to 1920 | |
| 940 to 1290 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 31 to 37 | |
| 31 to 33 |
| Strength to Weight: Bending, points | 26 to 29 | |
| 26 to 27 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 3.5 |
| Thermal Shock Resistance, points | 30 to 35 | |
| 23 to 25 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.15 | |
| 0 to 0.030 |
| Chromium (Cr), % | 11 to 12.5 | |
| 28 to 30 |
| Copper (Cu), % | 0 | |
| 0 to 0.8 |
| Iron (Fe), % | 80.5 to 84.8 | |
| 56.6 to 63.6 |
| Manganese (Mn), % | 0.4 to 0.9 | |
| 0.8 to 1.5 |
| Molybdenum (Mo), % | 1.5 to 2.0 | |
| 1.5 to 2.6 |
| Nickel (Ni), % | 2.0 to 3.0 | |
| 5.8 to 7.5 |
| Nitrogen (N), % | 0.020 to 0.040 | |
| 0.3 to 0.4 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |
| Vanadium (V), % | 0.25 to 0.4 | |
| 0 |