S17400 Stainless Steel vs. S45000 Stainless Steel
Both S17400 stainless steel and S45000 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 35 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 S17400 stainless steel and the bottom bar is S45000 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 440 | |
| 280 to 410 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 21 | |
| 6.8 to 14 |
| Fatigue Strength, MPa | 380 to 670 | |
| 330 to 650 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Reduction in Area, % | 40 to 62 | |
| 22 to 50 |
| Rockwell C Hardness | 27 to 43 | |
| 28 to 44 |
| Shear Modulus, GPa | 75 | |
| 76 |
| Shear Strength, MPa | 570 to 830 | |
| 590 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1390 | |
| 980 to 1410 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1250 | |
| 580 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 450 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 840 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1390 |
| 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 | 2.3 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.8 |
| Embodied Energy, MJ/kg | 39 | |
| 39 |
| Embodied Water, L/kg | 130 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 16 | |
| 17 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 94 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 4060 | |
| 850 to 4400 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 49 | |
| 35 to 50 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 28 to 36 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 4.5 |
| Thermal Shock Resistance, points | 30 to 46 | |
| 33 to 47 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.050 |
| Chromium (Cr), % | 15 to 17 | |
| 14 to 16 |
| Copper (Cu), % | 3.0 to 5.0 | |
| 1.3 to 1.8 |
| Iron (Fe), % | 70.4 to 78.9 | |
| 72.1 to 79.3 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.5 to 1.0 |
| Nickel (Ni), % | 3.0 to 5.0 | |
| 5.0 to 7.0 |
| 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 0.030 |