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C95820 Bronze vs. ASTM B541 Gold

C95820 bronze belongs to the copper alloys classification, while ASTM B541 gold belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C95820 bronze and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
6.0 to 14
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 44
38
Tensile Strength: Ultimate (UTS), MPa 730
670 to 1180
Tensile Strength: Yield (Proof), MPa 310
480 to 900

Thermal Properties

Latent Heat of Fusion, J/g 230
90
Melting Completion (Liquidus), °C 1080
1110
Melting Onset (Solidus), °C 1020
930
Specific Heat Capacity, J/kg-K 440
170
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.7 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
4.0 to 6.2

Otherwise Unclassified Properties

Density, g/cm3 8.3
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
65 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 400
1090 to 3830
Stiffness to Weight: Axial, points 8.0
3.4
Stiffness to Weight: Bending, points 20
9.0
Strength to Weight: Axial, points 24
11 to 19
Strength to Weight: Bending, points 22
9.8 to 14
Thermal Shock Resistance, points 25
36 to 63

Alloy Composition

Aluminum (Al), % 9.0 to 10
0
Copper (Cu), % 77.5 to 82.5
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Iron (Fe), % 4.0 to 5.0
0
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 4.5 to 5.8
0
Platinum (Pt), % 0
8.0 to 9.0
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
4.0 to 5.0
Tin (Sn), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.2
0.7 to 1.3
Residuals, % 0
0 to 0.4