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Grade C-6 Titanium vs. Grade 38 Titanium

Both grade C-6 titanium and grade 38 titanium are titanium alloys. They have a very high 96% 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 C-6 titanium and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 9.0
11
Fatigue Strength, MPa 460
530
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 890
1000
Tensile Strength: Yield (Proof), MPa 830
910

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 310
330
Melting Completion (Liquidus), °C 1580
1620
Melting Onset (Solidus), °C 1530
1570
Specific Heat Capacity, J/kg-K 550
550
Thermal Conductivity, W/m-K 7.8
8.0
Thermal Expansion, µm/m-K 9.8
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 30
35
Embodied Energy, MJ/kg 480
560
Embodied Water, L/kg 190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3300
3840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 55
62
Strength to Weight: Bending, points 46
49
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 63
72

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
3.5 to 4.5
Carbon (C), % 0 to 0.1
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.5
1.2 to 1.8
Nickel (Ni), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0 to 0.2
0.2 to 0.3
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4