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C17000 Copper vs. AWS BAu-2

C17000 copper belongs to the copper alloys classification, while AWS BAu-2 belongs to the otherwise unclassified metals. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is C17000 copper and the bottom bar is AWS BAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 45
36
Tensile Strength: Ultimate (UTS), MPa 490 to 1310
150

Thermal Properties

Latent Heat of Fusion, J/g 230
92
Melting Completion (Liquidus), °C 980
890
Melting Onset (Solidus), °C 870
890
Specific Heat Capacity, J/kg-K 390
180
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Density, g/cm3 8.8
17

Common Calculations

Stiffness to Weight: Axial, points 7.6
3.3
Stiffness to Weight: Bending, points 19
9.1
Strength to Weight: Axial, points 15 to 41
2.4
Strength to Weight: Bending, points 16 to 30
3.6
Thermal Shock Resistance, points 17 to 45
7.1

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 1.6 to 1.8
0
Copper (Cu), % 96.3 to 98.2
19.4 to 20.5
Gold (Au), % 0
79.5 to 80.5
Iron (Fe), % 0 to 0.4
0
Nickel (Ni), % 0.2 to 0.6
0
Silicon (Si), % 0 to 0.2
0
Residuals, % 0
0 to 0.15