Annealed AISI 440B vs. Annealed ASTM F15
Both annealed AISI 440B and annealed ASTM F15 are iron alloys. Both are furnished in the annealed condition. They have 54% 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 annealed AISI 440B and the bottom bar is annealed ASTM F15.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 18 | |
| 35 |
| Poisson's Ratio | 0.28 | |
| 0.3 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 460 | |
| 350 |
| Tensile Strength: Ultimate (UTS), MPa | 740 | |
| 520 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1410 |
| Melting Onset (Solidus), °C | 1370 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Conductivity, W/m-K | 23 | |
| 17 |
| Thermal Expansion, µm/m-K | 10 | |
| 6.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 3.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 4.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 49 |
| Density, g/cm3 | 7.7 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 5.2 |
| Embodied Energy, MJ/kg | 31 | |
| 71 |
| Embodied Water, L/kg | 120 | |
| 190 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 | |
| 320 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 27 | |
| 17 |
| Strength to Weight: Bending, points | 24 | |
| 17 |
| Thermal Diffusivity, mm2/s | 6.1 | |
| 4.5 |
| Thermal Shock Resistance, points | 27 | |
| 32 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.1 |
| Carbon (C), % | 0.75 to 1.0 | |
| 0 to 0.040 |
| Chromium (Cr), % | 16 to 18 | |
| 0 to 0.2 |
| Cobalt (Co), % | 0 | |
| 16 to 18 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 78.2 to 83.3 | |
| 50.3 to 56 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0 to 0.2 |
| Nickel (Ni), % | 0 | |
| 28 to 30 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.1 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.1 |