AWS BAg-20 vs. C90300 Bronze

AWS BAg-20 belongs to the otherwise unclassified metals classification, while C90300 bronze belongs to the copper alloys. They have 42% of their average alloy composition in common. There are 17 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-20 and the bottom bar is C90300 bronze.

AWS BAg-20 (P07301) Filler Metal UNS C90300 (Alloy 1B) Navy-G Tin Bronze

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		93
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		35
Shear Modulus, GPa		41

Tensile Strength: Ultimate (UTS), MPa		160
Tensile Strength: Ultimate (UTS), MPa		330

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		190

Melting Completion (Liquidus), °C		770
Melting Completion (Liquidus), °C		1000

Melting Onset (Solidus), °C		680
Melting Onset (Solidus), °C		850

Specific Heat Capacity, J/kg-K		340
Specific Heat Capacity, J/kg-K		370

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		18

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		30
Embodied Carbon, kg CO₂/kg material		3.4

Embodied Energy, MJ/kg		480
Embodied Energy, MJ/kg		56

Common Calculations

Stiffness to Weight: Axial, points		6.0
Stiffness to Weight: Axial, points		7.0

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		5.1
Strength to Weight: Axial, points		11

Strength to Weight: Bending, points		7.6
Strength to Weight: Bending, points		12

Thermal Shock Resistance, points		5.9
Thermal Shock Resistance, points		12

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0050

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.2

Copper (Cu), %		37 to 39
Copper (Cu), %		86 to 89

Iron (Fe), %		0
Iron (Fe), %		0 to 0.2

Lead (Pb), %		0
Lead (Pb), %		0 to 0.3

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

Phosphorus (P), %		0
Phosphorus (P), %		0 to 1.5

Silicon (Si), %		0
Silicon (Si), %		0 to 0.0050

Silver (Ag), %		29 to 31
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.050

Tin (Sn), %		0
Tin (Sn), %		7.5 to 9.0

Zinc (Zn), %		30 to 34
Zinc (Zn), %		3.0 to 5.0

Residuals, %		0 to 0.15
Residuals, %		0 to 0.6