EN 1.4021 Stainless Steel vs. EN 1.7386 Steel
Both EN 1.4021 stainless steel and EN 1.7386 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4021 stainless steel and the bottom bar is EN 1.7386 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 17 | |
| 18 to 21 |
| Fatigue Strength, MPa | 240 to 380 | |
| 170 to 290 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 75 |
| Shear Strength, MPa | 390 to 530 | |
| 340 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 880 | |
| 550 to 670 |
| Tensile Strength: Yield (Proof), MPa | 390 to 670 | |
| 240 to 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 600 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 26 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 6.5 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 2.0 |
| Embodied Energy, MJ/kg | 27 | |
| 28 |
| Embodied Water, L/kg | 100 | |
| 88 |
Common Calculations
| PREN (Pitting Resistance) | 13 | |
| 12 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 110 | |
| 92 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 1160 | |
| 150 to 490 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 23 to 31 | |
| 20 to 24 |
| Strength to Weight: Bending, points | 21 to 26 | |
| 19 to 22 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 6.9 |
| Thermal Shock Resistance, points | 22 to 31 | |
| 15 to 18 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.040 |
| Carbon (C), % | 0.16 to 0.25 | |
| 0.080 to 0.15 |
| Chromium (Cr), % | 12 to 14 | |
| 8.0 to 10 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 83.2 to 87.8 | |
| 86.8 to 90.5 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0 | |
| 0.9 to 1.1 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.25 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |