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CC212E Bronze vs. ASTM B685 Alloy

CC212E 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 (10, in this case) are not shown.

For each property being compared, the top bar is CC212E bronze and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
120
Poisson's Ratio 0.34
0.37
Shear Modulus, GPa 47
43
Tensile Strength: Ultimate (UTS), MPa 710
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 230
180
Melting Completion (Liquidus), °C 1080
1230
Melting Onset (Solidus), °C 1020
1200
Specific Heat Capacity, J/kg-K 440
300
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
4.1

Otherwise Unclassified Properties

Density, g/cm3 8.2
11

Common Calculations

Stiffness to Weight: Axial, points 8.5
6.1
Stiffness to Weight: Bending, points 20
15
Strength to Weight: Axial, points 24
17 to 27
Strength to Weight: Bending, points 21
16 to 21
Thermal Shock Resistance, points 22
28 to 46

Alloy Composition

Aluminum (Al), % 7.0 to 9.0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 68 to 77
39.5 to 40.5
Iron (Fe), % 2.0 to 4.0
0 to 0.050
Lead (Pb), % 0 to 0.050
0 to 0.030
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 8.0 to 15
0
Nickel (Ni), % 1.5 to 4.5
0
Palladium (Pd), % 0
59 to 60.5
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 0 to 1.0
0 to 0.060
Residuals, % 0
0 to 0.2