EN 1.4938 Stainless Steel vs. EN 1.4525 Stainless Steel
Both EN 1.4938 stainless steel and EN 1.4525 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 1.4525 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 16 to 17 | |
| 5.6 to 13 |
| Fatigue Strength, MPa | 390 to 520 | |
| 480 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 1030 | |
| 1030 to 1250 |
| Tensile Strength: Yield (Proof), MPa | 640 to 870 | |
| 840 to 1120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 430 |
| Maximum Temperature: Mechanical, °C | 750 | |
| 860 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1430 |
| Melting Onset (Solidus), °C | 1420 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 18 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.8 |
| 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 | |
| 68 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1050 to 1920 | |
| 1820 to 3230 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 31 to 37 | |
| 36 to 45 |
| Strength to Weight: Bending, points | 26 to 29 | |
| 29 to 33 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 4.7 |
| Thermal Shock Resistance, points | 30 to 35 | |
| 34 to 41 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.15 | |
| 0 to 0.070 |
| Chromium (Cr), % | 11 to 12.5 | |
| 15 to 17 |
| Copper (Cu), % | 0 | |
| 2.5 to 4.0 |
| Iron (Fe), % | 80.5 to 84.8 | |
| 70.4 to 79 |
| Manganese (Mn), % | 0.4 to 0.9 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 1.5 to 2.0 | |
| 0 to 0.8 |
| Nickel (Ni), % | 2.0 to 3.0 | |
| 3.5 to 5.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0.020 to 0.040 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.8 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |
| Vanadium (V), % | 0.25 to 0.4 | |
| 0 |