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C90200 Bronze vs. ASTM B628 Ag-Cu

C90200 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 (12, in this case) are not shown.

For each property being compared, the top bar is C90200 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, % 30
1.1 to 17
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 41
31
Tensile Strength: Ultimate (UTS), MPa 260
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 200
140
Melting Completion (Liquidus), °C 1050
780
Melting Onset (Solidus), °C 880
780
Specific Heat Capacity, J/kg-K 370
280
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
84
Electrical Conductivity: Equal Weight (Specific), % IACS 13
75

Otherwise Unclassified Properties

Density, g/cm3 8.8
10

Common Calculations

Stiffness to Weight: Axial, points 7.0
4.6
Stiffness to Weight: Bending, points 18
14
Strength to Weight: Axial, points 8.3
9.5 to 21
Strength to Weight: Bending, points 10
11 to 18
Thermal Shock Resistance, points 9.5
16 to 34

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 91 to 94
26.6 to 29
Iron (Fe), % 0 to 0.2
0 to 0.050
Lead (Pb), % 0 to 0.3
0 to 0.030
Nickel (Ni), % 0 to 0.5
0 to 0.010
Phosphorus (P), % 0 to 0.050
0 to 0.030
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
71 to 73
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 6.0 to 8.0
0
Zinc (Zn), % 0 to 0.5
0 to 0.060
Residuals, % 0
0 to 0.21