AISI 304L Stainless Steel vs. AISI 302 Stainless Steel
Both AISI 304L stainless steel and AISI 302 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 34 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 304L stainless steel and the bottom bar is AISI 302 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 350 | |
| 170 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 6.7 to 46 | |
| 4.5 to 46 |
| Fatigue Strength, MPa | 170 to 430 | |
| 210 to 520 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 370 to 680 | |
| 400 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 540 to 1160 | |
| 580 to 1430 |
| Tensile Strength: Yield (Proof), MPa | 190 to 870 | |
| 230 to 1100 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 420 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 540 | |
| 710 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1420 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 16 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 15 |
| Calomel Potential, mV | -80 | |
| -70 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.1 | |
| 3.0 |
| Embodied Energy, MJ/kg | 44 | |
| 42 |
| Embodied Water, L/kg | 150 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 240 | |
| 59 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 92 to 1900 | |
| 140 to 3070 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 41 | |
| 21 to 51 |
| Strength to Weight: Bending, points | 19 to 31 | |
| 20 to 36 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 4.4 |
| Thermal Shock Resistance, points | 12 to 25 | |
| 12 to 31 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.15 |
| Chromium (Cr), % | 18 to 20 | |
| 17 to 19 |
| Iron (Fe), % | 65 to 74 | |
| 67.9 to 75 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 8.0 to 12 | |
| 8.0 to 10 |
| 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 |