Annealed And Cold Drawn SAE-AISI 1045 vs. Annealed And Cold Drawn SAE-AISI 1547
Both annealed and cold drawn SAE-AISI 1045 and annealed and cold drawn SAE-AISI 1547 are iron alloys. Both are furnished in the annealed and cold-drawn condition. Their average alloy composition is basically identical.
For each property being compared, the top bar is annealed and cold drawn SAE-AISI 1045 and the bottom bar is annealed and cold drawn SAE-AISI 1547.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 | |
| 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 13 | |
| 11 |
| Fatigue Strength, MPa | 360 | |
| 410 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 51 | |
| 40 |
| Shear Modulus, GPa | 72 | |
| 73 |
| Shear Strength, MPa | 400 | |
| 440 |
| Tensile Strength: Ultimate (UTS), MPa | 660 | |
| 740 |
| Tensile Strength: Yield (Proof), MPa | 570 | |
| 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 1.9 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 18 | |
| 19 |
| Embodied Water, L/kg | 46 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 85 | |
| 80 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 870 | |
| 1190 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 | |
| 26 |
| Strength to Weight: Bending, points | 22 | |
| 23 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 21 | |
| 23 |
Alloy Composition
| Carbon (C), % | 0.43 to 0.5 | |
| 0.43 to 0.51 |
| Iron (Fe), % | 98.5 to 99 | |
| 97.8 to 98.2 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 1.4 to 1.7 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.050 |