EN 1.7725 Steel vs. EN 1.4662 Stainless Steel
Both EN 1.7725 steel and EN 1.4662 stainless steel are iron alloys. They have 69% 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 EN 1.7725 steel and the bottom bar is EN 1.4662 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 14 | |
| 28 |
| Fatigue Strength, MPa | 390 to 550 | |
| 430 to 450 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 73 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1000 | |
| 810 to 830 |
| Tensile Strength: Yield (Proof), MPa | 610 to 860 | |
| 580 to 620 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 1090 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1430 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 16 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 3.2 |
| Embodied Energy, MJ/kg | 24 | |
| 45 |
| Embodied Water, L/kg | 54 | |
| 170 |
Common Calculations
| PREN (Pitting Resistance) | 2.8 | |
| 33 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 980 to 1940 | |
| 840 to 940 |
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 29 to 35 | |
| 29 to 30 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 25 |
| Thermal Diffusivity, mm2/s | 11 | |
| 3.9 |
| Thermal Shock Resistance, points | 24 to 29 | |
| 22 |
Alloy Composition
| Carbon (C), % | 0.27 to 0.34 | |
| 0 to 0.030 |
| Chromium (Cr), % | 1.3 to 1.7 | |
| 23 to 25 |
| Copper (Cu), % | 0 | |
| 0.1 to 0.8 |
| Iron (Fe), % | 95.7 to 97.5 | |
| 62.6 to 70.2 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 2.5 to 4.0 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 1.0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 3.0 to 4.5 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.3 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.7 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.0050 |
| Vanadium (V), % | 0.050 to 0.15 | |
| 0 |