AISI 317 Stainless Steel vs. AISI 304 Stainless Steel
Both AISI 317 stainless steel and AISI 304 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is AISI 317 stainless steel and the bottom bar is AISI 304 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 220 | |
| 170 to 360 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 35 to 55 | |
| 8.0 to 43 |
| Fatigue Strength, MPa | 250 to 330 | |
| 210 to 440 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 77 |
| Shear Strength, MPa | 420 to 470 | |
| 400 to 690 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 710 | |
| 580 to 1180 |
| Tensile Strength: Yield (Proof), MPa | 250 to 420 | |
| 230 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 420 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 590 | |
| 710 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1450 |
| Melting Onset (Solidus), °C | 1380 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 16 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 21 | |
| 15 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.3 | |
| 3.0 |
| Embodied Energy, MJ/kg | 59 | |
| 43 |
| Embodied Water, L/kg | 160 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 31 | |
| 20 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 to 260 | |
| 86 to 250 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 430 | |
| 140 to 1870 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 20 to 25 | |
| 21 to 42 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 20 to 32 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 4.2 |
| Thermal Shock Resistance, points | 12 to 15 | |
| 12 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.080 |
| Chromium (Cr), % | 18 to 20 | |
| 18 to 20 |
| Iron (Fe), % | 58 to 68 | |
| 66.5 to 74 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 3.0 to 4.0 | |
| 0 |
| Nickel (Ni), % | 11 to 15 | |
| 8.0 to 10.5 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |