Titanium 6-2-4-2 vs. Grade 37 Titanium
Both titanium 6-2-4-2 and grade 37 titanium are titanium alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common.
For each property being compared, the top bar is titanium 6-2-4-2 and the bottom bar is grade 37 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
110 |
Elongation at Break, % | 8.6 | |
22 |
Fatigue Strength, MPa | 490 | |
170 |
Poisson's Ratio | 0.32 | |
0.32 |
Reduction in Area, % | 21 | |
34 |
Shear Modulus, GPa | 40 | |
40 |
Shear Strength, MPa | 560 | |
240 |
Tensile Strength: Ultimate (UTS), MPa | 950 | |
390 |
Tensile Strength: Yield (Proof), MPa | 880 | |
250 |
Thermal Properties
Latent Heat of Fusion, J/g | 400 | |
420 |
Maximum Temperature: Mechanical, °C | 300 | |
310 |
Melting Completion (Liquidus), °C | 1590 | |
1650 |
Melting Onset (Solidus), °C | 1540 | |
1600 |
Specific Heat Capacity, J/kg-K | 540 | |
550 |
Thermal Conductivity, W/m-K | 6.9 | |
21 |
Thermal Expansion, µm/m-K | 9.5 | |
8.9 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 0.9 | |
3.4 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
6.8 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 42 | |
36 |
Density, g/cm3 | 4.6 | |
4.5 |
Embodied Carbon, kg CO2/kg material | 32 | |
31 |
Embodied Energy, MJ/kg | 520 | |
500 |
Embodied Water, L/kg | 210 | |
120 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 79 | |
76 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 3640 | |
280 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 34 | |
35 |
Strength to Weight: Axial, points | 57 | |
24 |
Strength to Weight: Bending, points | 46 | |
26 |
Thermal Diffusivity, mm2/s | 2.8 | |
8.4 |
Thermal Shock Resistance, points | 67 | |
29 |
Alloy Composition
Aluminum (Al), % | 5.5 to 6.5 | |
1.0 to 2.0 |
Carbon (C), % | 0 to 0.050 | |
0 to 0.080 |
Hydrogen (H), % | 0 to 0.015 | |
0 to 0.015 |
Iron (Fe), % | 0 to 0.25 | |
0 to 0.3 |
Molybdenum (Mo), % | 1.8 to 2.2 | |
0 |
Nitrogen (N), % | 0 to 0.050 | |
0 to 0.030 |
Oxygen (O), % | 0 to 0.15 | |
0 to 0.25 |
Silicon (Si), % | 0.060 to 0.12 | |
0 |
Tin (Sn), % | 1.8 to 2.2 | |
0 |
Titanium (Ti), % | 83.7 to 87.2 | |
96.9 to 99 |
Zirconium (Zr), % | 3.6 to 4.4 | |
0 |
Residuals, % | 0 | |
0 to 0.4 |