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ASTM B628 Ag-Cu vs. C23400 Brass

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while C23400 brass 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 15 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is C23400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
110
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 31
42
Tensile Strength: Ultimate (UTS), MPa 350 to 760
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 140
190
Melting Completion (Liquidus), °C 780
970
Melting Onset (Solidus), °C 780
930
Specific Heat Capacity, J/kg-K 280
390
Thermal Expansion, µm/m-K 19
19

Otherwise Unclassified Properties

Density, g/cm3 10
8.5

Common Calculations

Stiffness to Weight: Axial, points 4.6
7.2
Stiffness to Weight: Bending, points 14
19
Strength to Weight: Axial, points 9.5 to 21
12 to 21
Strength to Weight: Bending, points 11 to 18
13 to 19
Thermal Shock Resistance, points 16 to 34
12 to 22

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 26.6 to 29
81 to 84
Iron (Fe), % 0 to 0.050
0 to 0.050
Lead (Pb), % 0 to 0.030
0 to 0.050
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.030
0
Silver (Ag), % 71 to 73
0
Zinc (Zn), % 0 to 0.060
15.7 to 19
Residuals, % 0
0 to 0.2