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Grade 28 Titanium vs. Grade C-6 Titanium

Both grade 28 titanium and grade C-6 titanium are titanium alloys. They have a very high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 28 titanium and the bottom bar is grade C-6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 11 to 17
9.0
Fatigue Strength, MPa 330 to 480
460
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 690 to 980
890
Tensile Strength: Yield (Proof), MPa 540 to 810
830

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 330
310
Melting Completion (Liquidus), °C 1640
1580
Melting Onset (Solidus), °C 1590
1530
Specific Heat Capacity, J/kg-K 550
550
Thermal Conductivity, W/m-K 8.3
7.8
Thermal Expansion, µm/m-K 9.9
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 37
30
Embodied Energy, MJ/kg 600
480
Embodied Water, L/kg 370
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
78
Resilience: Unit (Modulus of Resilience), kJ/m3 1370 to 3100
3300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 43 to 61
55
Strength to Weight: Bending, points 39 to 49
46
Thermal Diffusivity, mm2/s 3.4
3.2
Thermal Shock Resistance, points 47 to 66
63

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
4.0 to 6.0
Carbon (C), % 0 to 0.080
0 to 0.1
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.25
0 to 0.5
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0 to 0.2
Ruthenium (Ru), % 0.080 to 0.14
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 92.4 to 95.4
89.7 to 94
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0
0 to 0.4