AISI 317 Stainless Steel vs. SAE-AISI 1144 Steel
Both AISI 317 stainless steel and SAE-AISI 1144 steel are iron alloys. They have 64% of their average alloy composition in common. There are 31 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 AISI 317 stainless steel and the bottom bar is SAE-AISI 1144 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 220 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 35 to 55 | |
| 11 to 17 |
| Fatigue Strength, MPa | 250 to 330 | |
| 280 to 430 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 72 |
| Shear Strength, MPa | 420 to 470 | |
| 460 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 710 | |
| 750 to 840 |
| Tensile Strength: Yield (Proof), MPa | 250 to 420 | |
| 420 to 690 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 590 | |
| 400 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1450 |
| Melting Onset (Solidus), °C | 1380 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 51 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 21 | |
| 1.9 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.3 | |
| 1.4 |
| Embodied Energy, MJ/kg | 59 | |
| 19 |
| Embodied Water, L/kg | 160 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 to 260 | |
| 91 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 430 | |
| 480 to 1290 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 20 to 25 | |
| 27 to 30 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 23 to 25 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 14 |
| Thermal Shock Resistance, points | 12 to 15 | |
| 22 to 24 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0.4 to 0.48 |
| Chromium (Cr), % | 18 to 20 | |
| 0 |
| Iron (Fe), % | 58 to 68 | |
| 97.5 to 98 |
| Manganese (Mn), % | 0 to 2.0 | |
| 1.4 to 1.7 |
| Molybdenum (Mo), % | 3.0 to 4.0 | |
| 0 |
| Nickel (Ni), % | 11 to 15 | |
| 0 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.24 to 0.33 |