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

Both grade C-6 titanium and grade C-2 titanium are titanium alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290
180
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 9.0
17
Fatigue Strength, MPa 460
200
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 890
390
Tensile Strength: Yield (Proof), MPa 830
310

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 310
320
Melting Completion (Liquidus), °C 1580
1660
Melting Onset (Solidus), °C 1530
1610
Specific Heat Capacity, J/kg-K 550
540
Thermal Conductivity, W/m-K 7.8
21
Thermal Expansion, µm/m-K 9.8
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
37
Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 30
31
Embodied Energy, MJ/kg 480
510
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
61
Resilience: Unit (Modulus of Resilience), kJ/m3 3300
460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 55
24
Strength to Weight: Bending, points 46
26
Thermal Diffusivity, mm2/s 3.2
8.8
Thermal Shock Resistance, points 63
30

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.1
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 0.050
0 to 0.050
Oxygen (O), % 0 to 0.2
0 to 0.4
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
98.8 to 100
Residuals, % 0
0 to 0.4