AWS BAg-21 vs. C49300 Brass

AWS BAg-21 belongs to the otherwise unclassified metals classification, while C49300 brass belongs to the copper alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-21 and the bottom bar is C49300 brass.

AWS BAg-21 (P07630) Filler Metal UNS C49300 Bismuth Brass

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		85
Elastic (Young's, Tensile) Modulus, GPa		100

Poisson's Ratio		0.36
Poisson's Ratio		0.31

Shear Modulus, GPa		31
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		150
Tensile Strength: Ultimate (UTS), MPa		430 to 520

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		170

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		880

Melting Onset (Solidus), °C		690
Melting Onset (Solidus), °C		840

Specific Heat Capacity, J/kg-K		280
Specific Heat Capacity, J/kg-K		380

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		20

Otherwise Unclassified Properties

Density, g/cm³		9.8
Density, g/cm³		8.0

Embodied Energy, MJ/kg		970
Embodied Energy, MJ/kg		50

Common Calculations

Stiffness to Weight: Axial, points		4.8
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		15
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		4.2
Strength to Weight: Axial, points		15 to 18

Strength to Weight: Bending, points		6.4
Strength to Weight: Bending, points		16 to 18

Thermal Shock Resistance, points		6.6
Thermal Shock Resistance, points		14 to 18

Alloy Composition

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

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.5

Bismuth (Bi), %		0
Bismuth (Bi), %		0.5 to 2.0

Copper (Cu), %		27.5 to 29.5
Copper (Cu), %		58 to 62

Iron (Fe), %		0
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0
Lead (Pb), %		0 to 0.010

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.030

Nickel (Ni), %		2.0 to 3.0
Nickel (Ni), %		0 to 1.5

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.2

Selenium (Se), %		0
Selenium (Se), %		0 to 0.2

Silicon (Si), %		0
Silicon (Si), %		0 to 0.1

Silver (Ag), %		62 to 64
Silver (Ag), %		0

Tin (Sn), %		5.0 to 7.0
Tin (Sn), %		1.0 to 1.8

Zinc (Zn), %		0
Zinc (Zn), %		30.6 to 40.5

Residuals, %		0
Residuals, %		0 to 0.5