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C12900 Copper vs. ASTM B541 Gold

C12900 copper belongs to the copper alloys classification, while ASTM B541 gold belongs to the otherwise unclassified metals. There are 22 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 C12900 copper 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, % 2.8 to 50
6.0 to 14
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 43
38
Shear Strength, MPa 150 to 210
410 to 690
Tensile Strength: Ultimate (UTS), MPa 220 to 420
670 to 1180
Tensile Strength: Yield (Proof), MPa 75 to 380
480 to 900

Thermal Properties

Latent Heat of Fusion, J/g 210
90
Melting Completion (Liquidus), °C 1080
1110
Melting Onset (Solidus), °C 1030
930
Specific Heat Capacity, J/kg-K 390
170
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
7.7 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 98
4.0 to 6.2

Otherwise Unclassified Properties

Density, g/cm3 9.0
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 88
65 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 640
1090 to 3830
Stiffness to Weight: Axial, points 7.2
3.4
Stiffness to Weight: Bending, points 18
9.0
Strength to Weight: Axial, points 6.8 to 13
11 to 19
Strength to Weight: Bending, points 9.1 to 14
9.8 to 14
Thermal Shock Resistance, points 7.8 to 15
36 to 63

Alloy Composition

Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Copper (Cu), % 99.88 to 100
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Lead (Pb), % 0 to 0.0040
0
Nickel (Ni), % 0 to 0.050
0
Platinum (Pt), % 0
8.0 to 9.0
Silver (Ag), % 0 to 0.054
4.0 to 5.0
Tellurium (Te), % 0 to 0.025
0
Zinc (Zn), % 0
0.7 to 1.3
Residuals, % 0
0 to 0.4