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C90200 Bronze vs. ASTM B685 Alloy

C90200 bronze belongs to the copper alloys classification, while ASTM B685 alloy belongs to the otherwise unclassified metals. They have 40% of their average alloy composition in common. There are 17 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 B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.37
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 260
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Melting Completion (Liquidus), °C 1050
1230
Melting Onset (Solidus), °C 880
1200
Specific Heat Capacity, J/kg-K 370
300
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 13
4.1

Otherwise Unclassified Properties

Density, g/cm3 8.8
11

Common Calculations

Stiffness to Weight: Axial, points 7.0
6.1
Stiffness to Weight: Bending, points 18
15
Strength to Weight: Axial, points 8.3
17 to 27
Strength to Weight: Bending, points 10
16 to 21
Thermal Shock Resistance, points 9.5
28 to 46

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
39.5 to 40.5
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
Palladium (Pd), % 0
59 to 60.5
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.1
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 0.2