C55282 Copper vs. Solder Alloy 401

C55282 copper belongs to the copper alloys classification, while solder alloy 401 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C55282 copper and the bottom bar is solder alloy 401.

UNS C55282 (BCuP-7) Filler Metal ISO Solder Alloy 401 (IEC C7, Sn99.3Cu0.7)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		50

Poisson's Ratio		0.34
Poisson's Ratio		0.36

Shear Modulus, GPa		39
Shear Modulus, GPa		19

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		29

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		60

Melting Completion (Liquidus), °C		770
Melting Completion (Liquidus), °C		230

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		230

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		220

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		22

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		7.3

Embodied Carbon, kg CO₂/kg material		7.0
Embodied Carbon, kg CO₂/kg material		15

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		250

Common Calculations

Stiffness to Weight: Axial, points		6.8
Stiffness to Weight: Axial, points		3.8

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

Strength to Weight: Axial, points		5.8
Strength to Weight: Axial, points		1.1

Strength to Weight: Bending, points		8.2
Strength to Weight: Bending, points		2.9

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		1.9

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0010

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.1

Arsenic (As), %		0
Arsenic (As), %		0 to 0.030

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.1

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.0020

Copper (Cu), %		87.7 to 88.7
Copper (Cu), %		0.5 to 0.9

Gold (Au), %		0
Gold (Au), %		0 to 0.050

Indium (In), %		0
Indium (In), %		0 to 0.1

Iron (Fe), %		0
Iron (Fe), %		0 to 0.020

Lead (Pb), %		0
Lead (Pb), %		0 to 0.070

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.010

Phosphorus (P), %		6.5 to 7.0
Phosphorus (P), %		0

Silver (Ag), %		4.8 to 5.2
Silver (Ag), %		0 to 0.1

Tin (Sn), %		0
Tin (Sn), %		98.5 to 99.5

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.0010

Residuals, %		0 to 0.15
Residuals, %		0