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C94100 Bronze vs. ASTM B685 Alloy

C94100 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 (9, in this case) are not shown.

For each property being compared, the top bar is C94100 bronze and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 92
120
Poisson's Ratio 0.36
0.37
Shear Modulus, GPa 34
43
Tensile Strength: Ultimate (UTS), MPa 190
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 160
180
Melting Completion (Liquidus), °C 870
1230
Melting Onset (Solidus), °C 790
1200
Specific Heat Capacity, J/kg-K 330
300
Thermal Expansion, µm/m-K 20
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
4.1

Otherwise Unclassified Properties

Density, g/cm3 9.2
11

Common Calculations

Stiffness to Weight: Axial, points 5.5
6.1
Stiffness to Weight: Bending, points 16
15
Strength to Weight: Axial, points 5.8
17 to 27
Strength to Weight: Bending, points 8.1
16 to 21
Thermal Shock Resistance, points 7.6
28 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.8
0
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 72 to 79
39.5 to 40.5
Iron (Fe), % 0 to 0.25
0 to 0.050
Lead (Pb), % 18 to 22
0 to 0.030
Nickel (Ni), % 0 to 1.0
0
Palladium (Pd), % 0
59 to 60.5
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.5 to 6.5
0
Zinc (Zn), % 0 to 1.0
0 to 0.060
Residuals, % 0
0 to 0.2