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Grade 27 Titanium vs. Commercially Pure Silver

Grade 27 titanium belongs to the titanium alloys classification, while commercially pure silver belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 grade 27 titanium and the bottom bar is commercially pure silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 27
1.1 to 29
Poisson's Ratio 0.32
0.37
Shear Modulus, GPa 41
26
Shear Strength, MPa 180
120 to 190
Tensile Strength: Ultimate (UTS), MPa 270
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 420
110
Melting Completion (Liquidus), °C 1660
960
Melting Onset (Solidus), °C 1610
960
Specific Heat Capacity, J/kg-K 540
240
Thermal Conductivity, W/m-K 21
420
Thermal Expansion, µm/m-K 8.7
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
100
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
87

Otherwise Unclassified Properties

Density, g/cm3 4.5
10

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 35
13
Strength to Weight: Axial, points 17
4.9 to 8.9
Strength to Weight: Bending, points 21
6.9 to 10
Thermal Diffusivity, mm2/s 8.8
170
Thermal Shock Resistance, points 21
9.5 to 17

Alloy Composition

Carbon (C), % 0 to 0.080
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Ruthenium (Ru), % 0.080 to 0.14
0
Silver (Ag), % 0
99.9 to 100
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0
0 to 0.1