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ASTM B628 Ag-Cu vs. Grade 20 Titanium

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while grade 20 titanium belongs to the titanium alloys. There are 17 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is grade 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
120
Elongation at Break, % 1.1 to 17
5.7 to 17
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 31
47
Shear Strength, MPa 210 to 430
560 to 740
Tensile Strength: Ultimate (UTS), MPa 350 to 760
900 to 1270

Thermal Properties

Latent Heat of Fusion, J/g 140
400
Melting Completion (Liquidus), °C 780
1660
Melting Onset (Solidus), °C 780
1600
Specific Heat Capacity, J/kg-K 280
520
Thermal Expansion, µm/m-K 19
9.6

Otherwise Unclassified Properties

Density, g/cm3 10
5.0

Common Calculations

Stiffness to Weight: Axial, points 4.6
14
Stiffness to Weight: Bending, points 14
33
Strength to Weight: Axial, points 9.5 to 21
50 to 70
Strength to Weight: Bending, points 11 to 18
41 to 52
Thermal Shock Resistance, points 16 to 34
55 to 77

Alloy Composition

Aluminum (Al), % 0 to 0.0050
3.0 to 4.0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
5.5 to 6.5
Copper (Cu), % 26.6 to 29
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 0 to 0.050
0 to 0.3
Lead (Pb), % 0 to 0.030
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.030
0
Silver (Ag), % 71 to 73
0
Titanium (Ti), % 0
71 to 77
Vanadium (V), % 0
7.5 to 8.5
Zinc (Zn), % 0 to 0.060
0
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0 to 0.21
0 to 0.4

Comparable Variants