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Titanium 6-2-4-2 vs. ASTM B780 Alloy

Titanium 6-2-4-2 belongs to the titanium alloys classification, while ASTM B780 alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is titanium 6-2-4-2 and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
83
Elongation at Break, % 8.6
1.1 to 9.1
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 40
30
Shear Strength, MPa 560
200 to 340
Tensile Strength: Ultimate (UTS), MPa 950
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 400
140
Specific Heat Capacity, J/kg-K 540
270
Thermal Expansion, µm/m-K 9.5
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
70 to 76
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
62 to 68

Otherwise Unclassified Properties

Density, g/cm3 4.6
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.5
Stiffness to Weight: Bending, points 34
14
Strength to Weight: Axial, points 57
9.1 to 16
Strength to Weight: Bending, points 46
11 to 15
Thermal Shock Resistance, points 67
16 to 29

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
23.5 to 25.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Molybdenum (Mo), % 1.8 to 2.2
0
Nickel (Ni), % 0
0.35 to 0.65
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Silicon (Si), % 0.060 to 0.12
0
Silver (Ag), % 0
74 to 76
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0
Zinc (Zn), % 0
0 to 0.060
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0