AWS BAg-4 vs. C82800 Copper

AWS BAg-4 belongs to the otherwise unclassified metals classification, while C82800 copper belongs to the copper alloys. They have a modest 30% 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-4 and the bottom bar is C82800 copper.

AWS BAg-4 (P07400) Filler Metal UNS C82800 (Alloy 275C) Beryllium Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		91
Elastic (Young's, Tensile) Modulus, GPa		120

Poisson's Ratio		0.33
Poisson's Ratio		0.33

Shear Modulus, GPa		34
Shear Modulus, GPa		46

Tensile Strength: Ultimate (UTS), MPa		150
Tensile Strength: Ultimate (UTS), MPa		670 to 1140

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		240

Melting Completion (Liquidus), °C		780
Melting Completion (Liquidus), °C		930

Melting Onset (Solidus), °C		670
Melting Onset (Solidus), °C		890

Specific Heat Capacity, J/kg-K		330
Specific Heat Capacity, J/kg-K		390

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

Otherwise Unclassified Properties

Density, g/cm³		8.9
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		40
Embodied Carbon, kg CO₂/kg material		12

Embodied Energy, MJ/kg		630
Embodied Energy, MJ/kg		190

Common Calculations

Stiffness to Weight: Axial, points		5.7
Stiffness to Weight: Axial, points		7.8

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

Strength to Weight: Axial, points		4.7
Strength to Weight: Axial, points		21 to 36

Strength to Weight: Bending, points		7.1
Strength to Weight: Bending, points		20 to 28

Thermal Shock Resistance, points		5.7
Thermal Shock Resistance, points		23 to 39

Alloy Composition

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

Beryllium (Be), %		0
Beryllium (Be), %		2.5 to 2.9

Chromium (Cr), %		0
Chromium (Cr), %		0 to 0.1

Cobalt (Co), %		0
Cobalt (Co), %		0.15 to 0.7

Copper (Cu), %		29 to 31
Copper (Cu), %		94.6 to 97.2

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

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

Nickel (Ni), %		1.5 to 2.5
Nickel (Ni), %		0 to 0.2

Silicon (Si), %		0
Silicon (Si), %		0.2 to 0.35

Silver (Ag), %		39 to 41
Silver (Ag), %		0

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

Titanium (Ti), %		0
Titanium (Ti), %		0 to 0.12

Zinc (Zn), %		26 to 30
Zinc (Zn), %		0 to 0.1

Residuals, %		0
Residuals, %		0 to 0.5