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C86700 Bronze vs. ASTM B628 Ag-Cu

C86700 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 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 C86700 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, % 17
1.1 to 17
Poisson's Ratio 0.31
0.36
Shear Modulus, GPa 41
31
Tensile Strength: Ultimate (UTS), MPa 630
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 180
140
Melting Completion (Liquidus), °C 880
780
Melting Onset (Solidus), °C 860
780
Specific Heat Capacity, J/kg-K 400
280
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
84
Electrical Conductivity: Equal Weight (Specific), % IACS 19
75

Otherwise Unclassified Properties

Density, g/cm3 7.9
10

Common Calculations

Stiffness to Weight: Axial, points 7.5
4.6
Stiffness to Weight: Bending, points 20
14
Strength to Weight: Axial, points 22
9.5 to 21
Strength to Weight: Bending, points 21
11 to 18
Thermal Shock Resistance, points 21
16 to 34

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 55 to 60
26.6 to 29
Iron (Fe), % 1.0 to 3.0
0 to 0.050
Lead (Pb), % 0.5 to 1.5
0 to 0.030
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
0 to 0.010
Phosphorus (P), % 0
0 to 0.030
Silver (Ag), % 0
71 to 73
Tin (Sn), % 0 to 1.5
0
Zinc (Zn), % 30 to 38
0 to 0.060
Residuals, % 0
0 to 0.21