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Grade C-2 Titanium vs. Grade 12 Titanium

Both grade C-2 titanium and grade 12 titanium are titanium alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade C-2 titanium and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
21
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 390
530
Tensile Strength: Yield (Proof), MPa 310
410

Thermal Properties

Latent Heat of Fusion, J/g 420
420
Maximum Temperature: Mechanical, °C 320
320
Melting Completion (Liquidus), °C 1660
1660
Melting Onset (Solidus), °C 1610
1610
Specific Heat Capacity, J/kg-K 540
540
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 8.7
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
37
Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 31
31
Embodied Energy, MJ/kg 510
500
Embodied Water, L/kg 110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 24
32
Strength to Weight: Bending, points 26
32
Thermal Diffusivity, mm2/s 8.8
8.5
Thermal Shock Resistance, points 30
37

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.3
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0 to 0.050
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0 to 0.4
0 to 0.25
Titanium (Ti), % 98.8 to 100
97.6 to 99.2
Residuals, % 0
0 to 0.4