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AWS BAu-5 vs. C21000 Brass

AWS BAu-5 belongs to the otherwise unclassified metals classification, while C21000 brass belongs to the copper alloys. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is AWS BAu-5 and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.37
0.34
Shear Modulus, GPa 50
43
Tensile Strength: Ultimate (UTS), MPa 210
240 to 450

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Melting Completion (Liquidus), °C 1170
1070
Melting Onset (Solidus), °C 1140
1050
Specific Heat Capacity, J/kg-K 280
390
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Density, g/cm3 13
8.8

Common Calculations

Stiffness to Weight: Axial, points 5.8
7.2
Stiffness to Weight: Bending, points 13
18
Strength to Weight: Axial, points 4.5
7.4 to 14
Strength to Weight: Bending, points 6.0
9.6 to 15
Thermal Shock Resistance, points 9.0
8.1 to 15

Alloy Composition

Copper (Cu), % 0
94 to 96
Gold (Au), % 29.5 to 30.5
0
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Nickel (Ni), % 35.5 to 36.4
0
Palladium (Pd), % 33.5 to 34.5
0
Zinc (Zn), % 0
3.7 to 6.0
Residuals, % 0
0 to 0.2