C82800 Copper vs. AWS BAg-20

C82800 copper belongs to the copper alloys classification, while AWS BAg-20 belongs to the otherwise unclassified metals. 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 C82800 copper and the bottom bar is AWS BAg-20.

UNS C82800 (Alloy 275C) Beryllium Copper AWS BAg-20 (P07301) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.33
Poisson's Ratio		0.32

Shear Modulus, GPa		46
Shear Modulus, GPa		35

Tensile Strength: Ultimate (UTS), MPa		670 to 1140
Tensile Strength: Ultimate (UTS), MPa		160

Thermal Properties

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

Melting Completion (Liquidus), °C		930
Melting Completion (Liquidus), °C		770

Melting Onset (Solidus), °C		890
Melting Onset (Solidus), °C		680

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		340

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

Otherwise Unclassified Properties

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

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

Embodied Energy, MJ/kg		190
Embodied Energy, MJ/kg		480

Common Calculations

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

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

Strength to Weight: Axial, points		21 to 36
Strength to Weight: Axial, points		5.1

Strength to Weight: Bending, points		20 to 28
Strength to Weight: Bending, points		7.6

Thermal Shock Resistance, points		23 to 39
Thermal Shock Resistance, points		5.9

Alloy Composition

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

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

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

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

Copper (Cu), %		94.6 to 97.2
Copper (Cu), %		37 to 39

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

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

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

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

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

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

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

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

Residuals, %		0
Residuals, %		0 to 0.15