EN 1.4313 Stainless Steel vs. EN 1.7703 Steel
Both EN 1.4313 stainless steel and EN 1.7703 steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.4313 stainless steel and the bottom bar is EN 1.7703 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 12 to 17 | |
| 20 |
| Fatigue Strength, MPa | 340 to 510 | |
| 320 to 340 |
| Impact Strength: V-Notched Charpy, J | 55 to 70 | |
| 46 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 74 |
| Shear Strength, MPa | 460 to 600 | |
| 420 to 430 |
| Tensile Strength: Ultimate (UTS), MPa | 750 to 1000 | |
| 670 to 690 |
| Tensile Strength: Yield (Proof), MPa | 580 to 910 | |
| 460 to 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 780 | |
| 460 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1470 |
| Melting Onset (Solidus), °C | 1400 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 25 | |
| 39 |
| Thermal Expansion, µm/m-K | 10 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 4.2 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.4 | |
| 2.5 |
| Embodied Energy, MJ/kg | 34 | |
| 35 |
| Embodied Water, L/kg | 110 | |
| 61 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 5.6 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 150 | |
| 120 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 870 to 2100 | |
| 570 to 650 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 36 | |
| 24 |
| Strength to Weight: Bending, points | 23 to 28 | |
| 22 |
| Thermal Diffusivity, mm2/s | 6.7 | |
| 11 |
| Thermal Shock Resistance, points | 27 to 36 | |
| 19 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.11 to 0.15 |
| Chromium (Cr), % | 12 to 14 | |
| 2.0 to 2.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 78.5 to 84.2 | |
| 94.6 to 96.4 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0.3 to 0.7 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 3.5 to 4.5 | |
| 0 to 0.25 |
| Niobium (Nb), % | 0 | |
| 0 to 0.070 |
| Nitrogen (N), % | 0 to 0.020 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.7 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.0050 |
| Titanium (Ti), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.35 |