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C90200 Bronze vs. ASTM B541 Gold

C90200 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 (10, in this case) are not shown.

For each property being compared, the top bar is C90200 bronze and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 30
6.0 to 14
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 41
38
Tensile Strength: Ultimate (UTS), MPa 260
670 to 1180
Tensile Strength: Yield (Proof), MPa 110
480 to 900

Thermal Properties

Latent Heat of Fusion, J/g 200
90
Melting Completion (Liquidus), °C 1050
1110
Melting Onset (Solidus), °C 880
930
Specific Heat Capacity, J/kg-K 370
170
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.7 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 13
4.0 to 6.2

Otherwise Unclassified Properties

Density, g/cm3 8.8
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
65 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 55
1090 to 3830
Stiffness to Weight: Axial, points 7.0
3.4
Stiffness to Weight: Bending, points 18
9.0
Strength to Weight: Axial, points 8.3
11 to 19
Strength to Weight: Bending, points 10
9.8 to 14
Thermal Shock Resistance, points 9.5
36 to 63

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 91 to 94
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.050
0
Platinum (Pt), % 0
8.0 to 9.0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
4.0 to 5.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 6.0 to 8.0
0
Zinc (Zn), % 0 to 0.5
0.7 to 1.3
Residuals, % 0
0 to 0.4