EN 1.4903 Stainless Steel vs. EN 1.0303 Steel
Both EN 1.4903 stainless steel and EN 1.0303 steel are iron alloys. They have 89% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.4903 stainless steel and the bottom bar is EN 1.0303 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 21 | |
| 12 to 25 |
| Fatigue Strength, MPa | 320 to 330 | |
| 150 to 230 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 420 | |
| 220 to 260 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 680 | |
| 290 to 410 |
| Tensile Strength: Yield (Proof), MPa | 500 | |
| 200 to 320 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 650 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1470 |
| Melting Onset (Solidus), °C | 1420 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 26 | |
| 53 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 6.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.0 | |
| 7.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 36 | |
| 18 |
| Embodied Water, L/kg | 88 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 30 to 94 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 650 | |
| 110 to 270 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 24 | |
| 10 to 15 |
| Strength to Weight: Bending, points | 22 | |
| 12 to 16 |
| Thermal Diffusivity, mm2/s | 7.0 | |
| 14 |
| Thermal Shock Resistance, points | 23 | |
| 9.2 to 13 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.040 | |
| 0.020 to 0.060 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0.020 to 0.060 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Iron (Fe), % | 87.1 to 90.5 | |
| 99.335 to 99.71 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.25 to 0.4 |
| Molybdenum (Mo), % | 0.85 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Niobium (Nb), % | 0.060 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.070 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |