SAE-AISI 1049 Steel vs. EN 1.4594 Stainless Steel
Both SAE-AISI 1049 steel and EN 1.4594 stainless steel are iron alloys. They have 77% 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 SAE-AISI 1049 steel and the bottom bar is EN 1.4594 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 17 | |
| 11 to 17 |
| Fatigue Strength, MPa | 250 to 400 | |
| 490 to 620 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 76 |
| Shear Strength, MPa | 420 to 450 | |
| 620 to 700 |
| Tensile Strength: Ultimate (UTS), MPa | 680 to 750 | |
| 1020 to 1170 |
| Tensile Strength: Yield (Proof), MPa | 370 to 640 | |
| 810 to 1140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 820 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 16 |
| Thermal Expansion, µm/m-K | 12 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 15 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 3.2 |
| Embodied Energy, MJ/kg | 18 | |
| 45 |
| Embodied Water, L/kg | 46 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 75 to 99 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 to 1090 | |
| 1660 to 3320 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 24 to 27 | |
| 36 to 41 |
| Strength to Weight: Bending, points | 22 to 23 | |
| 29 to 31 |
| Thermal Diffusivity, mm2/s | 14 | |
| 4.4 |
| Thermal Shock Resistance, points | 22 to 24 | |
| 34 to 39 |
Alloy Composition
| Carbon (C), % | 0.46 to 0.53 | |
| 0 to 0.070 |
| Chromium (Cr), % | 0 | |
| 13 to 15 |
| Copper (Cu), % | 0 | |
| 1.2 to 2.0 |
| Iron (Fe), % | 98.5 to 98.9 | |
| 72.6 to 79.5 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 1.2 to 2.0 |
| Nickel (Ni), % | 0 | |
| 5.0 to 6.0 |
| Niobium (Nb), % | 0 | |
| 0.15 to 0.6 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 0.7 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.015 |