S15500 Stainless Steel vs. AISI 440B Stainless Steel
Both S15500 stainless steel and AISI 440B stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is S15500 stainless steel and the bottom bar is AISI 440B stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 6.8 to 16 | |
| 3.0 to 18 |
| Fatigue Strength, MPa | 350 to 650 | |
| 260 to 850 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 77 |
| Shear Strength, MPa | 540 to 870 | |
| 460 to 1110 |
| Tensile Strength: Ultimate (UTS), MPa | 890 to 1490 | |
| 740 to 1930 |
| Tensile Strength: Yield (Proof), MPa | 590 to 1310 | |
| 430 to 1860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 440 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 820 | |
| 870 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1480 |
| Melting Onset (Solidus), °C | 1380 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 17 | |
| 23 |
| Thermal Expansion, µm/m-K | 11 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 9.0 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.2 |
| Embodied Energy, MJ/kg | 39 | |
| 31 |
| Embodied Water, L/kg | 130 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 120 | |
| 57 to 110 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 53 | |
| 27 to 70 |
| Strength to Weight: Bending, points | 26 to 37 | |
| 24 to 45 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 6.1 |
| Thermal Shock Resistance, points | 30 to 50 | |
| 27 to 70 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0.75 to 1.0 |
| Chromium (Cr), % | 14 to 15.5 | |
| 16 to 18 |
| Copper (Cu), % | 2.5 to 4.5 | |
| 0 |
| Iron (Fe), % | 71.9 to 79.9 | |
| 78.2 to 83.3 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.75 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 0 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 0 |
| 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 0.015 |