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C34000 Brass vs. AWS BAu-4

C34000 brass belongs to the copper alloys classification, while AWS BAu-4 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (12, 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 C34000 brass and the bottom bar is AWS BAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.31
0.4
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 340 to 650
200

Thermal Properties

Latent Heat of Fusion, J/g 170
100
Melting Completion (Liquidus), °C 930
950
Melting Onset (Solidus), °C 890
950
Specific Heat Capacity, J/kg-K 380
190
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Density, g/cm3 8.1
17

Common Calculations

Stiffness to Weight: Axial, points 7.1
3.6
Stiffness to Weight: Bending, points 19
9.3
Strength to Weight: Axial, points 11 to 22
3.2
Strength to Weight: Bending, points 13 to 21
4.4
Thermal Shock Resistance, points 11 to 22
9.2

Alloy Composition

Copper (Cu), % 62 to 65
0
Gold (Au), % 0
81.5 to 82.5
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0.8 to 1.5
0
Nickel (Ni), % 0
17.4 to 18.5
Zinc (Zn), % 33 to 37.2
0
Residuals, % 0
0 to 0.15