S15500 Stainless Steel vs. S17400 Stainless Steel
Both S15500 stainless steel and S17400 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common.
For each property being compared, the top bar is S15500 stainless steel and the bottom bar is S17400 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 290 to 430 | |
| 280 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 6.8 to 16 | |
| 11 to 21 |
| Fatigue Strength, MPa | 350 to 650 | |
| 380 to 670 |
| Impact Strength: V-Notched Charpy, J | 7.8 to 53 | |
| 7.6 to 86 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Reduction in Area, % | 17 to 40 | |
| 40 to 62 |
| Rockwell C Hardness | 27 to 46 | |
| 27 to 43 |
| Shear Modulus, GPa | 75 | |
| 75 |
| Shear Strength, MPa | 540 to 870 | |
| 570 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 890 to 1490 | |
| 910 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 590 to 1310 | |
| 580 to 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 440 | |
| 450 |
| Maximum Temperature: Mechanical, °C | 820 | |
| 850 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1440 |
| Melting Onset (Solidus), °C | 1380 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 17 | |
| 17 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 14 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 39 | |
| 39 |
| Embodied Water, L/kg | 130 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 120 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 890 to 4460 | |
| 880 to 4060 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 53 | |
| 32 to 49 |
| Strength to Weight: Bending, points | 26 to 37 | |
| 27 to 35 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 4.5 |
| Thermal Shock Resistance, points | 30 to 50 | |
| 30 to 46 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.070 |
| Chromium (Cr), % | 14 to 15.5 | |
| 15 to 17 |
| Copper (Cu), % | 2.5 to 4.5 | |
| 3.0 to 5.0 |
| Iron (Fe), % | 71.9 to 79.9 | |
| 70.4 to 78.9 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 3.0 to 5.0 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 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 |