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C87500 Brass vs. ASTM B628 Ag-Cu

C87500 brass belongs to the copper alloys classification, while ASTM B628 Ag-Cu belongs to the otherwise unclassified metals. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 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 C87500 brass and the bottom bar is ASTM B628 Ag-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
83
Elongation at Break, % 18
1.1 to 17
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 42
31
Tensile Strength: Ultimate (UTS), MPa 460
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 260
140
Melting Completion (Liquidus), °C 920
780
Melting Onset (Solidus), °C 820
780
Specific Heat Capacity, J/kg-K 410
280
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
84
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
75

Otherwise Unclassified Properties

Density, g/cm3 8.3
10

Common Calculations

Stiffness to Weight: Axial, points 7.4
4.6
Stiffness to Weight: Bending, points 19
14
Strength to Weight: Axial, points 16
9.5 to 21
Strength to Weight: Bending, points 16
11 to 18
Thermal Shock Resistance, points 17
16 to 34

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 79 to 85
26.6 to 29
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0 to 0.5
0 to 0.030
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 3.0 to 5.0
0
Silver (Ag), % 0
71 to 73
Zinc (Zn), % 12 to 16
0 to 0.060
Residuals, % 0
0 to 0.21