EN 1.4378 Stainless Steel vs. EN 1.7703 Steel
Both EN 1.4378 stainless steel and EN 1.7703 steel are iron alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.4378 stainless steel and the bottom bar is EN 1.7703 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 340 | |
| 200 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 34 | |
| 20 |
| Fatigue Strength, MPa | 340 to 550 | |
| 320 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 74 |
| Shear Strength, MPa | 510 to 680 | |
| 420 to 430 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 1130 | |
| 670 to 690 |
| Tensile Strength: Yield (Proof), MPa | 430 to 970 | |
| 460 to 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 910 | |
| 460 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1470 |
| Melting Onset (Solidus), °C | 1350 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 4.2 |
| Density, g/cm3 | 7.6 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.5 |
| Embodied Energy, MJ/kg | 39 | |
| 35 |
| Embodied Water, L/kg | 150 | |
| 61 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 5.6 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 220 | |
| 120 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 470 to 2370 | |
| 570 to 650 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 41 | |
| 24 |
| Strength to Weight: Bending, points | 24 to 31 | |
| 22 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 19 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0.11 to 0.15 |
| Chromium (Cr), % | 17 to 19 | |
| 2.0 to 2.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 61.2 to 69 | |
| 94.6 to 96.4 |
| Manganese (Mn), % | 11.5 to 14.5 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 2.3 to 3.7 | |
| 0 to 0.25 |
| Niobium (Nb), % | 0 | |
| 0 to 0.070 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.0050 |
| Titanium (Ti), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.35 |