EN 1.4122 Stainless Steel vs. SAE-AISI 1049 Steel
Both EN 1.4122 stainless steel and SAE-AISI 1049 steel are iron alloys. They have 81% 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 1.4122 stainless steel and the bottom bar is SAE-AISI 1049 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 | |
| 11 to 17 |
| Fatigue Strength, MPa | 260 to 360 | |
| 250 to 400 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Shear Strength, MPa | 480 to 520 | |
| 420 to 450 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 850 | |
| 680 to 750 |
| Tensile Strength: Yield (Proof), MPa | 450 to 630 | |
| 370 to 640 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 870 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 51 |
| Thermal Expansion, µm/m-K | 10 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 1.8 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 33 | |
| 18 |
| Embodied Water, L/kg | 120 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 93 to 110 | |
| 75 to 99 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 520 to 1000 | |
| 370 to 1090 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 31 | |
| 24 to 27 |
| Strength to Weight: Bending, points | 25 to 26 | |
| 22 to 23 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 14 |
| Thermal Shock Resistance, points | 28 to 30 | |
| 22 to 24 |
Alloy Composition
| Carbon (C), % | 0.33 to 0.45 | |
| 0.46 to 0.53 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 0 |
| Iron (Fe), % | 77.2 to 83.4 | |
| 98.5 to 98.9 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 0.8 to 1.3 | |
| 0 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.050 |