AWS BVAg-6b vs. Solder Alloy 121

Both AWS BVAg-6b and solder alloy 121 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 AWS BVAg-6b and the bottom bar is solder alloy 121.

AWS BVAg-6b (P07507) Vacuum Service Filler Metal ISO Solder Alloy 121 (Pb85Sn15)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		93
Elastic (Young's, Tensile) Modulus, GPa		21

Poisson's Ratio		0.35
Poisson's Ratio		0.43

Shear Modulus, GPa		35
Shear Modulus, GPa		7.5

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		32

Thermal Properties

Latent Heat of Fusion, J/g		160
Latent Heat of Fusion, J/g		29

Melting Completion (Liquidus), °C		870
Melting Completion (Liquidus), °C		290

Melting Onset (Solidus), °C		780
Melting Onset (Solidus), °C		230

Specific Heat Capacity, J/kg-K		310
Specific Heat Capacity, J/kg-K		140

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		28

Otherwise Unclassified Properties

Density, g/cm³		9.7
Density, g/cm³		11

Embodied Carbon, kg CO₂/kg material		49
Embodied Carbon, kg CO₂/kg material		5.6

Embodied Energy, MJ/kg		770
Embodied Energy, MJ/kg		93

Common Calculations

Stiffness to Weight: Axial, points		5.3
Stiffness to Weight: Axial, points		1.1

Stiffness to Weight: Bending, points		16
Stiffness to Weight: Bending, points		8.6

Strength to Weight: Axial, points		5.1
Strength to Weight: Axial, points		0.84

Strength to Weight: Bending, points		7.3
Strength to Weight: Bending, points		2.1

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		3.9

Alloy Composition

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

Antimony (Sb), %		0
Antimony (Sb), %		0 to 0.5

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

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.25

Cadmium (Cd), %		0 to 0.0010
Cadmium (Cd), %		0 to 0.0050

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

Copper (Cu), %		49 to 51
Copper (Cu), %		0 to 0.080

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), %		83.4 to 85.5

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

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

Silver (Ag), %		49 to 51
Silver (Ag), %		0 to 0.1

Tin (Sn), %		0
Tin (Sn), %		14.5 to 15.5

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