AWS BAg-20 vs. C94700 Bronze

AWS BAg-20 belongs to the otherwise unclassified metals classification, while C94700 bronze belongs to the copper alloys. They have a modest 40% 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 (12, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-20 and the bottom bar is C94700 bronze.

AWS BAg-20 (P07301) Filler Metal UNS C94700 Nickel-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		43

Tensile Strength: Ultimate (UTS), MPa		160
Tensile Strength: Ultimate (UTS), MPa		350 to 590

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		200

Melting Completion (Liquidus), °C		770
Melting Completion (Liquidus), °C		1030

Melting Onset (Solidus), °C		680
Melting Onset (Solidus), °C		900

Specific Heat Capacity, J/kg-K		340
Specific Heat Capacity, J/kg-K		380

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		30
Embodied Carbon, kg CO₂/kg material		3.5

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

Common Calculations

Stiffness to Weight: Axial, points		6.0
Stiffness to Weight: Axial, points		7.3

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 to 19

Strength to Weight: Bending, points		7.6
Strength to Weight: Bending, points		13 to 18

Thermal Shock Resistance, points		5.9
Thermal Shock Resistance, points		12 to 21

Alloy Composition

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

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.15

Copper (Cu), %		37 to 39
Copper (Cu), %		85 to 90

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

Lead (Pb), %		0
Lead (Pb), %		0 to 0.1

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.2

Nickel (Ni), %		0
Nickel (Ni), %		4.5 to 6.0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.050

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), %		4.5 to 6.0

Zinc (Zn), %		30 to 34
Zinc (Zn), %		1.0 to 2.5

Residuals, %		0
Residuals, %		0 to 1.3