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ASTM B628 Ag-Cu vs. Titanium 15-3-3-3

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 19 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 ASTM B628 Ag-Cu and the bottom bar is titanium 15-3-3-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
100
Elongation at Break, % 1.1 to 17
5.7 to 8.0
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 31
39
Shear Strength, MPa 210 to 430
660 to 810
Tensile Strength: Ultimate (UTS), MPa 350 to 760
1120 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 140
390
Melting Completion (Liquidus), °C 780
1620
Melting Onset (Solidus), °C 780
1560
Specific Heat Capacity, J/kg-K 280
520
Thermal Expansion, µm/m-K 19
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 75
2.3

Otherwise Unclassified Properties

Density, g/cm3 10
4.8

Common Calculations

Stiffness to Weight: Axial, points 4.6
12
Stiffness to Weight: Bending, points 14
32
Strength to Weight: Axial, points 9.5 to 21
64 to 80
Strength to Weight: Bending, points 11 to 18
50 to 57
Thermal Shock Resistance, points 16 to 34
79 to 98

Alloy Composition

Aluminum (Al), % 0 to 0.0050
2.5 to 3.5
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
2.5 to 3.5
Copper (Cu), % 26.6 to 29
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.050
0 to 0.25
Lead (Pb), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.030
0
Silver (Ag), % 71 to 73
0
Tin (Sn), % 0
2.5 to 3.5
Titanium (Ti), % 0
72.6 to 78.5
Vanadium (V), % 0
14 to 16
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.21
0 to 0.4