SAE-AISI 1045 Steel vs. Grade 28 Titanium
SAE-AISI 1045 steel belongs to the iron alloys classification, while grade 28 titanium belongs to the titanium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1045 steel and the bottom bar is grade 28 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
110 |
Elongation at Break, % | 13 to 18 | |
11 to 17 |
Fatigue Strength, MPa | 220 to 370 | |
330 to 480 |
Poisson's Ratio | 0.29 | |
0.32 |
Reduction in Area, % | 40 to 51 | |
22 |
Shear Modulus, GPa | 72 | |
40 |
Shear Strength, MPa | 380 to 410 | |
420 to 590 |
Tensile Strength: Ultimate (UTS), MPa | 620 to 680 | |
690 to 980 |
Tensile Strength: Yield (Proof), MPa | 330 to 580 | |
540 to 810 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
410 |
Maximum Temperature: Mechanical, °C | 400 | |
330 |
Melting Completion (Liquidus), °C | 1460 | |
1640 |
Melting Onset (Solidus), °C | 1420 | |
1590 |
Specific Heat Capacity, J/kg-K | 470 | |
550 |
Thermal Conductivity, W/m-K | 51 | |
8.3 |
Thermal Expansion, µm/m-K | 12 | |
9.9 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
1.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
2.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 1.8 | |
36 |
Density, g/cm3 | 7.8 | |
4.5 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
37 |
Embodied Energy, MJ/kg | 18 | |
600 |
Embodied Water, L/kg | 46 | |
370 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 to 93 | |
87 to 110 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 900 | |
1370 to 3100 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
35 |
Strength to Weight: Axial, points | 22 to 24 | |
43 to 61 |
Strength to Weight: Bending, points | 21 to 22 | |
39 to 49 |
Thermal Diffusivity, mm2/s | 14 | |
3.4 |
Thermal Shock Resistance, points | 20 to 22 | |
47 to 66 |
Alloy Composition
Aluminum (Al), % | 0 | |
2.5 to 3.5 |
Carbon (C), % | 0.43 to 0.5 | |
0 to 0.080 |
Hydrogen (H), % | 0 | |
0 to 0.015 |
Iron (Fe), % | 98.5 to 99 | |
0 to 0.25 |
Manganese (Mn), % | 0.6 to 0.9 | |
0 |
Nitrogen (N), % | 0 | |
0 to 0.030 |
Oxygen (O), % | 0 | |
0 to 0.15 |
Phosphorus (P), % | 0 to 0.040 | |
0 |
Ruthenium (Ru), % | 0 | |
0.080 to 0.14 |
Sulfur (S), % | 0 to 0.050 | |
0 |
Titanium (Ti), % | 0 | |
92.4 to 95.4 |
Vanadium (V), % | 0 | |
2.0 to 3.0 |
Residuals, % | 0 | |
0 to 0.4 |