EN 1.7729 Steel vs. EN 1.4482 Stainless Steel
Both EN 1.7729 steel and EN 1.4482 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 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 1.7729 steel and the bottom bar is EN 1.4482 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 17 | |
| 34 |
| Fatigue Strength, MPa | 500 | |
| 420 to 450 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 78 |
| Shear Strength, MPa | 560 | |
| 510 to 530 |
| Tensile Strength: Ultimate (UTS), MPa | 910 | |
| 770 to 800 |
| Tensile Strength: Yield (Proof), MPa | 750 | |
| 530 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 980 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1420 |
| Melting Onset (Solidus), °C | 1430 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 40 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.8 | |
| 12 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.7 |
| Embodied Energy, MJ/kg | 49 | |
| 38 |
| Embodied Water, L/kg | 59 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 4.4 | |
| 24 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 | |
| 230 to 250 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1500 | |
| 690 to 820 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 32 | |
| 28 to 29 |
| Strength to Weight: Bending, points | 27 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.0 |
| Thermal Shock Resistance, points | 27 | |
| 21 to 22 |
Alloy Composition
| Aluminum (Al), % | 0.015 to 0.080 | |
| 0 |
| Arsenic (As), % | 0 to 0.020 | |
| 0 |
| Boron (B), % | 0.0010 to 0.010 | |
| 0 |
| Carbon (C), % | 0.17 to 0.23 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 19.5 to 21.5 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 to 1.0 |
| Iron (Fe), % | 94.8 to 97 | |
| 66.1 to 74.9 |
| Manganese (Mn), % | 0.35 to 0.75 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0.1 to 0.6 |
| Nickel (Ni), % | 0 to 0.2 | |
| 1.5 to 3.5 |
| Nitrogen (N), % | 0 | |
| 0.050 to 0.2 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |
| Tin (Sn), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0.070 to 0.15 | |
| 0 |
| Vanadium (V), % | 0.6 to 0.8 | |
| 0 |