AISI 420 Stainless Steel vs. AISI 316 Stainless Steel
Both AISI 420 stainless steel and AISI 316 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is AISI 316 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 160 to 360 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 8.0 to 15 | |
| 8.0 to 55 |
| Fatigue Strength, MPa | 220 to 670 | |
| 210 to 430 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Rockwell B Hardness | 84 | |
| 80 |
| Shear Modulus, GPa | 76 | |
| 78 |
| Shear Strength, MPa | 420 to 1010 | |
| 350 to 690 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 1720 | |
| 520 to 1180 |
| Tensile Strength: Yield (Proof), MPa | 380 to 1310 | |
| 230 to 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 620 | |
| 590 |
| Melting Completion (Liquidus), °C | 1510 | |
| 1400 |
| Melting Onset (Solidus), °C | 1450 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 27 | |
| 15 |
| Thermal Expansion, µm/m-K | 10 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.5 | |
| 19 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 3.9 |
| Embodied Energy, MJ/kg | 28 | |
| 53 |
| Embodied Water, L/kg | 100 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 26 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 130 | |
| 85 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 4410 | |
| 130 to 1820 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 to 62 | |
| 18 to 41 |
| Strength to Weight: Bending, points | 22 to 41 | |
| 18 to 31 |
| Thermal Diffusivity, mm2/s | 7.3 | |
| 4.1 |
| Thermal Shock Resistance, points | 25 to 62 | |
| 11 to 26 |
Alloy Composition
| Carbon (C), % | 0.15 to 0.4 | |
| 0 to 0.080 |
| Chromium (Cr), % | 12 to 14 | |
| 16 to 18 |
| Iron (Fe), % | 82.3 to 87.9 | |
| 62 to 72 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 0 to 0.75 | |
| 10 to 14 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |