AWS BVAu-2 vs. C99400 Brass

AWS BVAu-2 belongs to the otherwise unclassified metals classification, while C99400 brass belongs to the copper alloys. 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 (10, in this case) are not shown.

For each property being compared, the top bar is AWS BVAu-2 and the bottom bar is C99400 brass.

AWS BVAu-2 (P00807) Vacuum Service Filler Metal UNS C99400 Brass

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.4
Poisson's Ratio		0.34

Shear Modulus, GPa		36
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		150
Tensile Strength: Ultimate (UTS), MPa		460 to 550

Thermal Properties

Latent Heat of Fusion, J/g		92
Latent Heat of Fusion, J/g		230

Melting Completion (Liquidus), °C		890
Melting Completion (Liquidus), °C		1070

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		1020

Specific Heat Capacity, J/kg-K		180
Specific Heat Capacity, J/kg-K		400

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Density, g/cm³		17
Density, g/cm³		8.7

Common Calculations

Stiffness to Weight: Axial, points		3.3
Stiffness to Weight: Axial, points		7.5

Stiffness to Weight: Bending, points		9.1
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		2.4
Strength to Weight: Axial, points		15 to 17

Strength to Weight: Bending, points		3.6
Strength to Weight: Bending, points		15 to 17

Thermal Shock Resistance, points		7.1
Thermal Shock Resistance, points		16 to 19

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		0.5 to 2.0

Cadmium (Cd), %		0 to 0.0010
Cadmium (Cd), %		0

Carbon (C), %		0 to 0.0050
Carbon (C), %		0

Copper (Cu), %		19.5 to 20.5
Copper (Cu), %		83.5 to 96.5

Gold (Au), %		79.5 to 80.5
Gold (Au), %		0

Iron (Fe), %		0
Iron (Fe), %		1.0 to 3.0

Lead (Pb), %		0 to 0.0020
Lead (Pb), %		0 to 0.25

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		1.0 to 3.5

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0

Silicon (Si), %		0
Silicon (Si), %		0.5 to 2.0

Zinc (Zn), %		0 to 0.0010
Zinc (Zn), %		0.5 to 5.0

Residuals, %		0
Residuals, %		0 to 0.3