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Grade 6 Titanium vs. Grade 30 Titanium

Both grade 6 titanium and grade 30 titanium are titanium alloys. Both are furnished in the annealed 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 (1, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is grade 30 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 11
23
Fatigue Strength, MPa 290
250
Poisson's Ratio 0.32
0.32
Reduction in Area, % 27
34
Shear Modulus, GPa 39
41
Shear Strength, MPa 530
240
Tensile Strength: Ultimate (UTS), MPa 890
390
Tensile Strength: Yield (Proof), MPa 840
350

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 9.4
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 30
36
Embodied Energy, MJ/kg 480
600
Embodied Water, L/kg 190
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
86
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
590
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
8.6
Thermal Shock Resistance, points 65
30

Alloy Composition


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Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.3
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.2
0 to 0.25
Palladium (Pd), % 0
0.040 to 0.080
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
98 to 99.76
Residuals, % 0 to 0.4
0 to 0.4