S66286 Stainless Steel vs. ASTM A387 Grade 9 Steel
Both S66286 stainless steel and ASTM A387 grade 9 steel are iron alloys. They have 65% of their average alloy composition in common. There are 31 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 S66286 stainless steel and the bottom bar is ASTM A387 grade 9 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 17 to 40 | |
| 20 to 21 |
| Fatigue Strength, MPa | 240 to 410 | |
| 160 to 240 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 75 |
| Shear Strength, MPa | 420 to 630 | |
| 310 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1020 | |
| 500 to 600 |
| Tensile Strength: Yield (Proof), MPa | 280 to 670 | |
| 230 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 920 | |
| 600 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 26 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.9 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.2 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 6.5 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 6.0 | |
| 2.1 |
| Embodied Energy, MJ/kg | 87 | |
| 28 |
| Embodied Water, L/kg | 170 | |
| 87 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 12 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 200 | |
| 83 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 to 1150 | |
| 140 to 310 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 36 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 20 to 28 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 6.9 |
| Thermal Shock Resistance, points | 13 to 22 | |
| 14 to 17 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.35 | |
| 0 |
| Boron (B), % | 0.0010 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.15 |
| Chromium (Cr), % | 13.5 to 16 | |
| 8.0 to 10 |
| Iron (Fe), % | 49.1 to 59.5 | |
| 87.1 to 90.8 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 1.0 to 1.5 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 24 to 27 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Titanium (Ti), % | 1.9 to 2.4 | |
| 0 |
| Vanadium (V), % | 0.1 to 0.5 | |
| 0 to 0.040 |