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Grade C-6 Titanium vs. Titanium 6-6-2

Both grade C-6 titanium and titanium 6-6-2 are titanium alloys. They have a moderately high 93% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade C-6 titanium and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 9.0
6.7 to 9.0
Fatigue Strength, MPa 460
590 to 670
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
44
Tensile Strength: Ultimate (UTS), MPa 890
1140 to 1370
Tensile Strength: Yield (Proof), MPa 830
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 310
310
Melting Completion (Liquidus), °C 1580
1610
Melting Onset (Solidus), °C 1530
1560
Specific Heat Capacity, J/kg-K 550
540
Thermal Conductivity, W/m-K 7.8
5.5
Thermal Expansion, µm/m-K 9.8
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
40
Density, g/cm3 4.5
4.8
Embodied Carbon, kg CO2/kg material 30
29
Embodied Energy, MJ/kg 480
470
Embodied Water, L/kg 190
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
89 to 99
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
34
Strength to Weight: Axial, points 55
66 to 79
Strength to Weight: Bending, points 46
50 to 57
Thermal Diffusivity, mm2/s 3.2
2.1
Thermal Shock Resistance, points 63
75 to 90

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
5.0 to 6.0
Carbon (C), % 0 to 0.1
0 to 0.050
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.5
0.35 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.0
Nickel (Ni), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0 to 0.2
0 to 0.2
Tin (Sn), % 2.0 to 3.0
1.5 to 2.5
Titanium (Ti), % 89.7 to 94
82.8 to 87.8
Residuals, % 0
0 to 0.4