EN 1.4938 Stainless Steel vs. EN 1.3555 Steel
Both EN 1.4938 stainless steel and EN 1.3555 steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 1.3555 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 1030 | |
| 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 750 | |
| 540 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1500 |
| Melting Onset (Solidus), °C | 1420 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 9.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 11 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 5.6 |
| Embodied Energy, MJ/kg | 47 | |
| 81 |
| Embodied Water, L/kg | 110 | |
| 90 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 18 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 31 to 37 | |
| 27 |
| Strength to Weight: Bending, points | 26 to 29 | |
| 23 |
| Thermal Shock Resistance, points | 30 to 35 | |
| 22 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.15 | |
| 0.1 to 0.15 |
| Chromium (Cr), % | 11 to 12.5 | |
| 3.9 to 4.3 |
| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Iron (Fe), % | 80.5 to 84.8 | |
| 85.4 to 87.7 |
| Manganese (Mn), % | 0.4 to 0.9 | |
| 0.15 to 0.35 |
| Molybdenum (Mo), % | 1.5 to 2.0 | |
| 4.0 to 4.5 |
| Nickel (Ni), % | 2.0 to 3.0 | |
| 3.2 to 3.6 |
| Nitrogen (N), % | 0.020 to 0.040 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.1 to 0.25 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |
| Tungsten (W), % | 0 | |
| 0 to 0.15 |
| Vanadium (V), % | 0.25 to 0.4 | |
| 1.0 to 1.3 |