ASTM A387 Grade 9 Steel vs. S46910 Stainless Steel
Both ASTM A387 grade 9 steel and S46910 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is S46910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 180 | |
| 270 to 630 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 to 21 | |
| 2.2 to 11 |
| Fatigue Strength, MPa | 160 to 240 | |
| 250 to 1020 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 76 |
| Shear Strength, MPa | 310 to 380 | |
| 410 to 1410 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 600 | |
| 680 to 2470 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 450 to 2290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 810 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 6.5 | |
| 18 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.1 | |
| 4.1 |
| Embodied Energy, MJ/kg | 28 | |
| 55 |
| Embodied Water, L/kg | 87 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 12 | |
| 25 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 110 | |
| 48 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 310 | |
| 510 to 4780 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 24 to 86 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 22 to 51 |
| Thermal Shock Resistance, points | 14 to 17 | |
| 23 to 84 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.15 to 0.5 |
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.030 |
| Chromium (Cr), % | 8.0 to 10 | |
| 11 to 13 |
| Copper (Cu), % | 0 | |
| 1.5 to 3.5 |
| Iron (Fe), % | 87.1 to 90.8 | |
| 65 to 76 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 3.0 to 5.0 |
| Nickel (Ni), % | 0 | |
| 8.0 to 10 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.7 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 0.5 to 1.2 |
| Vanadium (V), % | 0 to 0.040 | |
| 0 |