SAE-AISI 1090 Steel vs. Grade C-5 Titanium
SAE-AISI 1090 steel belongs to the iron alloys classification, while grade C-5 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1090 steel and the bottom bar is grade C-5 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 280 | |
| 310 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 11 | |
| 6.7 |
| Fatigue Strength, MPa | 320 to 380 | |
| 510 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 72 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 950 | |
| 1000 |
| Tensile Strength: Yield (Proof), MPa | 520 to 610 | |
| 940 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 340 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1610 |
| Melting Onset (Solidus), °C | 1410 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 560 |
| Thermal Conductivity, W/m-K | 50 | |
| 7.1 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.6 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 1.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 36 |
| Density, g/cm3 | 7.8 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 38 |
| Embodied Energy, MJ/kg | 19 | |
| 610 |
| Embodied Water, L/kg | 46 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 82 to 91 | |
| 66 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 730 to 1000 | |
| 4200 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 28 to 34 | |
| 63 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 50 |
| Thermal Diffusivity, mm2/s | 13 | |
| 2.9 |
| Thermal Shock Resistance, points | 25 to 31 | |
| 71 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 5.5 to 6.8 |
| Carbon (C), % | 0.85 to 1.0 | |
| 0 to 0.1 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 98 to 98.6 | |
| 0 to 0.4 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 87.5 to 91 |
| Vanadium (V), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |