ASTM A182 Grade F24 vs. ACI-ASTM CD6MN Steel
Both ASTM A182 grade F24 and ACI-ASTM CD6MN steel are iron alloys. Both are furnished in the normalized and tempered condition. They have 70% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is ASTM A182 grade F24 and the bottom bar is ACI-ASTM CD6MN steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 23 | |
| 28 |
| Fatigue Strength, MPa | 330 | |
| 370 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 74 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 730 |
| Tensile Strength: Yield (Proof), MPa | 460 | |
| 510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1440 |
| Melting Onset (Solidus), °C | 1430 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 | |
| 16 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 2.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
| 2.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.0 | |
| 17 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 3.4 |
| Embodied Energy, MJ/kg | 33 | |
| 48 |
| Embodied Water, L/kg | 61 | |
| 170 |
Common Calculations
| PREN (Pitting Resistance) | 6.7 | |
| 36 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 | |
| 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 | |
| 650 |
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 24 | |
| 26 |
| Strength to Weight: Bending, points | 22 | |
| 23 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.4 |
| Thermal Shock Resistance, points | 19 | |
| 20 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.020 | |
| 0 |
| Boron (B), % | 0.0015 to 0.0070 | |
| 0 |
| Carbon (C), % | 0.050 to 0.1 | |
| 0 to 0.060 |
| Chromium (Cr), % | 2.2 to 2.6 | |
| 24 to 27 |
| Iron (Fe), % | 94.5 to 96.1 | |
| 62.1 to 70.1 |
| Manganese (Mn), % | 0.3 to 0.7 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 1.8 to 2.5 |
| Nickel (Ni), % | 0 | |
| 4.0 to 6.0 |
| Nitrogen (N), % | 0 to 0.12 | |
| 0.15 to 0.25 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.15 to 0.45 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.040 |
| Titanium (Ti), % | 0.060 to 0.1 | |
| 0 |
| Vanadium (V), % | 0.2 to 0.3 | |
| 0 |