AISI 420 Stainless Steel vs. S15500 Stainless Steel
Both AISI 420 stainless steel and S15500 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 33 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 AISI 420 stainless steel and the bottom bar is S15500 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 290 to 430 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 8.0 to 15 | |
| 6.8 to 16 |
| Fatigue Strength, MPa | 220 to 670 | |
| 350 to 650 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 75 |
| Shear Strength, MPa | 420 to 1010 | |
| 540 to 870 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 1720 | |
| 890 to 1490 |
| Tensile Strength: Yield (Proof), MPa | 380 to 1310 | |
| 590 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 440 |
| Maximum Temperature: Mechanical, °C | 620 | |
| 820 |
| Melting Completion (Liquidus), °C | 1510 | |
| 1430 |
| Melting Onset (Solidus), °C | 1450 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 27 | |
| 17 |
| Thermal Expansion, µm/m-K | 10 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.5 | |
| 13 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 2.7 |
| Embodied Energy, MJ/kg | 28 | |
| 39 |
| Embodied Water, L/kg | 100 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 130 | |
| 98 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 4410 | |
| 890 to 4460 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 to 62 | |
| 32 to 53 |
| Strength to Weight: Bending, points | 22 to 41 | |
| 26 to 37 |
| Thermal Diffusivity, mm2/s | 7.3 | |
| 4.6 |
| Thermal Shock Resistance, points | 25 to 62 | |
| 30 to 50 |
Alloy Composition
| Carbon (C), % | 0.15 to 0.4 | |
| 0 to 0.070 |
| Chromium (Cr), % | 12 to 14 | |
| 14 to 15.5 |
| Copper (Cu), % | 0 | |
| 2.5 to 4.5 |
| Iron (Fe), % | 82.3 to 87.9 | |
| 71.9 to 79.9 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 0 to 0.75 | |
| 3.5 to 5.5 |
| Niobium (Nb), % | 0 | |
| 0.15 to 0.45 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |