EN 1.7703 Steel vs. AISI 347 Stainless Steel
Both EN 1.7703 steel and AISI 347 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 32 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 1.7703 steel and the bottom bar is AISI 347 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 160 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 | |
| 34 to 46 |
| Fatigue Strength, MPa | 320 to 340 | |
| 220 to 270 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 74 | |
| 77 |
| Shear Strength, MPa | 420 to 430 | |
| 430 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 690 | |
| 610 to 690 |
| Tensile Strength: Yield (Proof), MPa | 460 to 500 | |
| 240 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 870 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1430 |
| Melting Onset (Solidus), °C | 1430 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 | |
| 16 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.2 | |
| 19 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 3.6 |
| Embodied Energy, MJ/kg | 35 | |
| 52 |
| Embodied Water, L/kg | 61 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 5.6 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 190 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 650 | |
| 150 to 310 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 24 | |
| 22 to 25 |
| Strength to Weight: Bending, points | 22 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.3 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 13 to 15 |
Alloy Composition
| Carbon (C), % | 0.11 to 0.15 | |
| 0 to 0.080 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 17 to 19 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 |
| Iron (Fe), % | 94.6 to 96.4 | |
| 64.1 to 74 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.25 | |
| 9.0 to 13 |
| Niobium (Nb), % | 0 to 0.070 | |
| 0 to 1.0 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.030 | |
| 0 |
| Vanadium (V), % | 0.25 to 0.35 | |
| 0 |