AWS BVPd-1 vs. Solder Alloy 401

Both AWS BVPd-1 and solder alloy 401 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 15 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS BVPd-1 and the bottom bar is solder alloy 401.

AWS BVPd-1 (P03657) Vacuum Service Filler Metal ISO Solder Alloy 401 (IEC C7, Sn99.3Cu0.7)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		150
Elastic (Young's, Tensile) Modulus, GPa		50

Poisson's Ratio		0.37
Poisson's Ratio		0.36

Shear Modulus, GPa		56
Shear Modulus, GPa		19

Tensile Strength: Ultimate (UTS), MPa		240
Tensile Strength: Ultimate (UTS), MPa		29

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		60

Melting Completion (Liquidus), °C		1240
Melting Completion (Liquidus), °C		230

Melting Onset (Solidus), °C		1230
Melting Onset (Solidus), °C		230

Specific Heat Capacity, J/kg-K		310
Specific Heat Capacity, J/kg-K		220

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		22

Otherwise Unclassified Properties

Density, g/cm³		11
Density, g/cm³		7.3

Common Calculations

Stiffness to Weight: Axial, points		7.7
Stiffness to Weight: Axial, points		3.8

Stiffness to Weight: Bending, points		16
Stiffness to Weight: Bending, points		17

Strength to Weight: Axial, points		6.1
Strength to Weight: Axial, points		1.1

Strength to Weight: Bending, points		7.9
Strength to Weight: Bending, points		2.9

Thermal Shock Resistance, points		9.8
Thermal Shock Resistance, points		1.9

Alloy Composition

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 to 0.0010
Cadmium (Cd), %		0 to 0.0020

Carbon (C), %		0 to 0.0050
Carbon (C), %		0

Cobalt (Co), %		33.9 to 36
Cobalt (Co), %		0

Copper (Cu), %		0
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 to 0.0020
Lead (Pb), %		0 to 0.070

Nickel (Ni), %		0 to 0.060
Nickel (Ni), %		0 to 0.010

Palladium (Pd), %		64 to 66
Palladium (Pd), %		0

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0

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

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

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