Grade 17 Titanium vs. SAE-AISI A2 Steel
Grade 17 titanium belongs to the titanium alloys classification, while SAE-AISI A2 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is grade 17 titanium and the bottom bar is SAE-AISI A2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
190 |
Poisson's Ratio | 0.32 | |
0.29 |
Shear Modulus, GPa | 38 | |
74 |
Tensile Strength: Ultimate (UTS), MPa | 270 | |
710 to 2040 |
Thermal Properties
Latent Heat of Fusion, J/g | 420 | |
260 |
Melting Completion (Liquidus), °C | 1660 | |
1450 |
Melting Onset (Solidus), °C | 1610 | |
1410 |
Specific Heat Capacity, J/kg-K | 540 | |
470 |
Thermal Conductivity, W/m-K | 23 | |
38 |
Thermal Expansion, µm/m-K | 8.7 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.7 | |
8.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 7.3 | |
9.5 |
Otherwise Unclassified Properties
Density, g/cm3 | 4.5 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 36 | |
2.7 |
Embodied Energy, MJ/kg | 600 | |
38 |
Embodied Water, L/kg | 230 | |
73 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 35 | |
25 |
Strength to Weight: Axial, points | 17 | |
25 to 73 |
Strength to Weight: Bending, points | 21 | |
23 to 46 |
Thermal Diffusivity, mm2/s | 9.3 | |
10 |
Thermal Shock Resistance, points | 21 | |
25 to 71 |
Alloy Composition
Carbon (C), % | 0 to 0.080 | |
1.0 to 1.1 |
Chromium (Cr), % | 0 | |
4.8 to 5.5 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Hydrogen (H), % | 0 to 0.015 | |
0 |
Iron (Fe), % | 0 to 0.2 | |
89.4 to 93.3 |
Manganese (Mn), % | 0 | |
0 to 1.0 |
Molybdenum (Mo), % | 0 | |
0.9 to 1.4 |
Nickel (Ni), % | 0 | |
0 to 0.3 |
Nitrogen (N), % | 0 to 0.030 | |
0 |
Oxygen (O), % | 0 to 0.18 | |
0 |
Palladium (Pd), % | 0.040 to 0.080 | |
0 |
Phosphorus (P), % | 0 | |
0 to 0.030 |
Silicon (Si), % | 0 | |
0 to 0.5 |
Sulfur (S), % | 0 | |
0 to 0.030 |
Titanium (Ti), % | 99.015 to 99.96 | |
0 |
Vanadium (V), % | 0 | |
0.15 to 0.5 |
Residuals, % | 0 to 0.4 | |
0 |