C68000 Brass vs. AWS BAg-7

C68000 brass belongs to the copper alloys classification, while AWS BAg-7 belongs to the otherwise unclassified metals. They have 40% of their average alloy composition in common. There are 18 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 C68000 brass and the bottom bar is AWS BAg-7.

UNS C68000 (RBCuZn-B) Filler Metal AWS BAg-7 (P07563) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		83

Poisson's Ratio		0.3
Poisson's Ratio		0.34

Shear Modulus, GPa		40
Shear Modulus, GPa		31

Tensile Strength: Ultimate (UTS), MPa		390
Tensile Strength: Ultimate (UTS), MPa		150

Thermal Properties

Brazing Temperature, °C		880 to 980
Brazing Temperature, °C		650 to 900

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		130

Melting Completion (Liquidus), °C		880
Melting Completion (Liquidus), °C		650

Melting Onset (Solidus), °C		870
Melting Onset (Solidus), °C		620

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		290

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		20

Otherwise Unclassified Properties

Density, g/cm³		8.0
Density, g/cm³		9.3

Embodied Carbon, kg CO₂/kg material		2.8
Embodied Carbon, kg CO₂/kg material		55

Embodied Energy, MJ/kg		48
Embodied Energy, MJ/kg		860

Common Calculations

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		4.9

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		16

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		4.5

Strength to Weight: Bending, points		15
Strength to Weight: Bending, points		6.7

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		6.4

Alloy Composition

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Aluminum (Al), %		0 to 0.010
Aluminum (Al), %		0

Copper (Cu), %		56 to 60
Copper (Cu), %		21 to 23

Iron (Fe), %		0.25 to 1.3
Iron (Fe), %		0

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0

Manganese (Mn), %		0.010 to 0.5
Manganese (Mn), %		0

Nickel (Ni), %		0.2 to 0.8
Nickel (Ni), %		0

Silicon (Si), %		0.040 to 0.15
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		55 to 57

Tin (Sn), %		0.75 to 1.1
Tin (Sn), %		4.5 to 5.5

Zinc (Zn), %		35.6 to 42.8
Zinc (Zn), %		15 to 19

Residuals, %		0 to 0.5
Residuals, %		0 to 0.15