C67500 Bronze vs. AWS BAg-3

C67500 bronze belongs to the copper alloys classification, while AWS BAg-3 belongs to the otherwise unclassified metals. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C67500 bronze and the bottom bar is AWS BAg-3.

UNS C67500 (CW721R) Manganese Bronze AWS BAg-3 (P07501) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		80

Poisson's Ratio		0.3
Poisson's Ratio		0.33

Shear Modulus, GPa		40
Shear Modulus, GPa		30

Tensile Strength: Ultimate (UTS), MPa		430 to 580
Tensile Strength: Ultimate (UTS), MPa		170

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		120

Melting Completion (Liquidus), °C		890
Melting Completion (Liquidus), °C		690

Melting Onset (Solidus), °C		870
Melting Onset (Solidus), °C		630

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		22

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		49

Embodied Energy, MJ/kg		47
Embodied Energy, MJ/kg		770

Common Calculations

Stiffness to Weight: Axial, points		7.3
Stiffness to Weight: Axial, points		4.8

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		15

Strength to Weight: Axial, points		15 to 20
Strength to Weight: Axial, points		5.1

Strength to Weight: Bending, points		16 to 19
Strength to Weight: Bending, points		7.3

Thermal Shock Resistance, points		14 to 19
Thermal Shock Resistance, points		6.9

Alloy Composition

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Aluminum (Al), %		0 to 0.25
Aluminum (Al), %		0

Cadmium (Cd), %		0
Cadmium (Cd), %		15 to 17

Copper (Cu), %		57 to 60
Copper (Cu), %		14.5 to 16.5

Iron (Fe), %		0.8 to 2.0
Iron (Fe), %		0

Lead (Pb), %		0 to 0.2
Lead (Pb), %		0

Manganese (Mn), %		0.050 to 0.5
Manganese (Mn), %		0

Nickel (Ni), %		0
Nickel (Ni), %		2.5 to 3.5

Silver (Ag), %		0
Silver (Ag), %		49 to 51

Tin (Sn), %		0.5 to 1.5
Tin (Sn), %		0

Zinc (Zn), %		35.1 to 41.7
Zinc (Zn), %		13.5 to 17.5

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