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ASTM B628 Ag-Cu vs. C17300 Copper

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while C17300 copper belongs to the copper alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is C17300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
120
Elongation at Break, % 1.1 to 17
3.0 to 23
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 31
45
Shear Strength, MPa 210 to 430
320 to 790
Tensile Strength: Ultimate (UTS), MPa 350 to 760
500 to 1380

Thermal Properties

Latent Heat of Fusion, J/g 140
230
Melting Completion (Liquidus), °C 780
980
Melting Onset (Solidus), °C 780
870
Specific Heat Capacity, J/kg-K 280
380
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
22
Electrical Conductivity: Equal Weight (Specific), % IACS 75
23

Otherwise Unclassified Properties

Density, g/cm3 10
8.8

Common Calculations

Stiffness to Weight: Axial, points 4.6
7.6
Stiffness to Weight: Bending, points 14
19
Strength to Weight: Axial, points 9.5 to 21
16 to 44
Strength to Weight: Bending, points 11 to 18
16 to 31
Thermal Shock Resistance, points 16 to 34
17 to 48

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.2
Beryllium (Be), % 0
1.8 to 2.0
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 26.6 to 29
95.5 to 97.8
Iron (Fe), % 0 to 0.050
0 to 0.4
Lead (Pb), % 0 to 0.030
0.2 to 0.6
Nickel (Ni), % 0 to 0.010
0.2 to 0.6
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 71 to 73
0
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.21
0 to 0.5