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C31600 Bronze vs. ASTM B628 Ag-Cu

C31600 bronze 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 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C31600 bronze 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, % 6.7 to 28
1.1 to 17
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 42
31
Shear Strength, MPa 170 to 270
210 to 430
Tensile Strength: Ultimate (UTS), MPa 270 to 460
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 200
140
Melting Completion (Liquidus), °C 1040
780
Melting Onset (Solidus), °C 1010
780
Specific Heat Capacity, J/kg-K 380
280
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
84
Electrical Conductivity: Equal Weight (Specific), % IACS 33
75

Otherwise Unclassified Properties

Density, g/cm3 8.8
10

Common Calculations

Stiffness to Weight: Axial, points 7.1
4.6
Stiffness to Weight: Bending, points 18
14
Strength to Weight: Axial, points 8.5 to 15
9.5 to 21
Strength to Weight: Bending, points 11 to 15
11 to 18
Thermal Shock Resistance, points 9.4 to 16
16 to 34

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 87.5 to 90.5
26.6 to 29
Iron (Fe), % 0 to 0.1
0 to 0.050
Lead (Pb), % 1.3 to 2.5
0 to 0.030
Nickel (Ni), % 0.7 to 1.2
0 to 0.010
Phosphorus (P), % 0.040 to 0.1
0 to 0.030
Silver (Ag), % 0
71 to 73
Zinc (Zn), % 5.2 to 10.5
0 to 0.060
Residuals, % 0 to 0.4
0 to 0.21