S21904 Stainless Steel vs. EN 1.6553 Steel
Both S21904 stainless steel and EN 1.6553 steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is S21904 stainless steel and the bottom bar is EN 1.6553 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 300 | |
| 210 to 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 17 to 51 | |
| 19 to 21 |
| Fatigue Strength, MPa | 380 to 550 | |
| 330 to 460 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 1000 | |
| 710 to 800 |
| Tensile Strength: Yield (Proof), MPa | 390 to 910 | |
| 470 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 420 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1460 |
| Melting Onset (Solidus), °C | 1350 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 39 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 2.7 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 1.6 |
| Embodied Energy, MJ/kg | 43 | |
| 21 |
| Embodied Water, L/kg | 160 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 160 to 310 | |
| 130 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 2070 | |
| 600 to 1190 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 36 | |
| 25 to 28 |
| Strength to Weight: Bending, points | 23 to 29 | |
| 23 to 24 |
| Thermal Diffusivity, mm2/s | 3.8 | |
| 10 |
| Thermal Shock Resistance, points | 15 to 21 | |
| 21 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.040 | |
| 0.23 to 0.28 |
| Chromium (Cr), % | 19 to 21.5 | |
| 0.4 to 0.8 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 59.5 to 67.4 | |
| 95.6 to 98.2 |
| Manganese (Mn), % | 8.0 to 10 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 5.5 to 7.5 | |
| 0.4 to 0.8 |
| Nitrogen (N), % | 0.15 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.8 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Vanadium (V), % | 0 | |
| 0 to 0.030 |