AWS BAg-20 vs. C82700 Copper

AWS BAg-20 belongs to the otherwise unclassified metals classification, while C82700 copper belongs to the copper alloys. They have a modest 38% 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 C82700 copper.

AWS BAg-20 (P07301) Filler Metal UNS C82700 Beryllium-Nickel Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		93
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.32
Poisson's Ratio		0.33

Shear Modulus, GPa		35
Shear Modulus, GPa		46

Tensile Strength: Ultimate (UTS), MPa		160
Tensile Strength: Ultimate (UTS), MPa		1200

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		240

Melting Completion (Liquidus), °C		770
Melting Completion (Liquidus), °C		950

Melting Onset (Solidus), °C		680
Melting Onset (Solidus), °C		860

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		8.7

Embodied Carbon, kg CO₂/kg material		30
Embodied Carbon, kg CO₂/kg material		12

Embodied Energy, MJ/kg		480
Embodied Energy, MJ/kg		180

Common Calculations

Stiffness to Weight: Axial, points		6.0
Stiffness to Weight: Axial, points		7.8

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		5.1
Strength to Weight: Axial, points		38

Strength to Weight: Bending, points		7.6
Strength to Weight: Bending, points		29

Thermal Shock Resistance, points		5.9
Thermal Shock Resistance, points		41

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.15

Beryllium (Be), %		0
Beryllium (Be), %		2.4 to 2.6

Chromium (Cr), %		0
Chromium (Cr), %		0 to 0.090

Copper (Cu), %		37 to 39
Copper (Cu), %		94.6 to 96.7

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

Lead (Pb), %		0
Lead (Pb), %		0 to 0.020

Nickel (Ni), %		0
Nickel (Ni), %		1.0 to 1.5

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

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

Tin (Sn), %		0
Tin (Sn), %		0 to 0.1

Zinc (Zn), %		30 to 34
Zinc (Zn), %		0 to 0.1

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