SAE-AISI A7 Steel vs. Titanium 15-3-3-3
SAE-AISI A7 steel belongs to the iron alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI A7 steel and the bottom bar is titanium 15-3-3-3.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
100 |
Poisson's Ratio | 0.29 | |
0.33 |
Shear Modulus, GPa | 72 | |
39 |
Tensile Strength: Ultimate (UTS), MPa | 800 to 2150 | |
1120 to 1390 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
390 |
Melting Completion (Liquidus), °C | 1470 | |
1620 |
Melting Onset (Solidus), °C | 1430 | |
1560 |
Specific Heat Capacity, J/kg-K | 470 | |
520 |
Thermal Conductivity, W/m-K | 37 | |
8.1 |
Thermal Expansion, µm/m-K | 12 | |
9.8 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 10 | |
40 |
Density, g/cm3 | 7.7 | |
4.8 |
Embodied Carbon, kg CO2/kg material | 13 | |
59 |
Embodied Energy, MJ/kg | 200 | |
950 |
Embodied Water, L/kg | 100 | |
260 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
12 |
Stiffness to Weight: Bending, points | 25 | |
32 |
Strength to Weight: Axial, points | 29 to 77 | |
64 to 80 |
Strength to Weight: Bending, points | 25 to 48 | |
50 to 57 |
Thermal Diffusivity, mm2/s | 10 | |
3.2 |
Thermal Shock Resistance, points | 27 to 72 | |
79 to 98 |
Alloy Composition
Aluminum (Al), % | 0 | |
2.5 to 3.5 |
Carbon (C), % | 2.0 to 2.9 | |
0 to 0.050 |
Chromium (Cr), % | 5.0 to 5.8 | |
2.5 to 3.5 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Hydrogen (H), % | 0 | |
0 to 0.015 |
Iron (Fe), % | 81.4 to 87.7 | |
0 to 0.25 |
Manganese (Mn), % | 0 to 0.8 | |
0 |
Molybdenum (Mo), % | 0.9 to 1.4 | |
0 |
Nickel (Ni), % | 0 to 0.3 | |
0 |
Nitrogen (N), % | 0 | |
0 to 0.050 |
Oxygen (O), % | 0 | |
0 to 0.13 |
Phosphorus (P), % | 0 to 0.030 | |
0 |
Silicon (Si), % | 0 to 0.5 | |
0 |
Sulfur (S), % | 0 to 0.030 | |
0 |
Tin (Sn), % | 0 | |
2.5 to 3.5 |
Titanium (Ti), % | 0 | |
72.6 to 78.5 |
Tungsten (W), % | 0.5 to 1.5 | |
0 |
Vanadium (V), % | 3.9 to 5.2 | |
14 to 16 |
Residuals, % | 0 | |
0 to 0.4 |