ASTM A387 Grade 9 Steel vs. EN 1.4110 Stainless Steel
Both ASTM A387 grade 9 steel and EN 1.4110 stainless steel are iron alloys. They have a moderately high 94% 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 ASTM A387 grade 9 steel and the bottom bar is EN 1.4110 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 to 21 | |
| 11 to 14 |
| Fatigue Strength, MPa | 160 to 240 | |
| 250 to 730 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 76 |
| Shear Strength, MPa | 310 to 380 | |
| 470 to 1030 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 600 | |
| 770 to 1720 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 430 to 1330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 790 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1440 |
| Melting Onset (Solidus), °C | 1410 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 26 | |
| 30 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 9.0 | |
| 2.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 3.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 6.5 | |
| 8.0 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.1 | |
| 2.3 |
| Embodied Energy, MJ/kg | 28 | |
| 33 |
| Embodied Water, L/kg | 87 | |
| 110 |
Common Calculations
| PREN (Pitting Resistance) | 12 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 110 | |
| 90 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 310 | |
| 480 to 4550 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 28 to 62 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 24 to 41 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 8.1 |
| Thermal Shock Resistance, points | 14 to 17 | |
| 27 to 60 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.48 to 0.6 |
| Chromium (Cr), % | 8.0 to 10 | |
| 13 to 15 |
| Iron (Fe), % | 87.1 to 90.8 | |
| 81.4 to 86 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0.5 to 0.8 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.015 |
| Vanadium (V), % | 0 to 0.040 | |
| 0 to 0.15 |