AWS BAg-26 vs. Solder Alloy 402

Both AWS BAg-26 and solder alloy 402 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 (7, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-26 and the bottom bar is solder alloy 402.

AWS BAg-26 (P07250) Filler Metal ISO Solder Alloy 402 (IEC C30, Sn97Cu3)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		98
Elastic (Young's, Tensile) Modulus, GPa		52

Poisson's Ratio		0.32
Poisson's Ratio		0.36

Shear Modulus, GPa		37
Shear Modulus, GPa		19

Tensile Strength: Ultimate (UTS), MPa		160
Tensile Strength: Ultimate (UTS), MPa		57

Thermal Properties

Latent Heat of Fusion, J/g		160
Latent Heat of Fusion, J/g		64

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		310

Melting Onset (Solidus), °C		710
Melting Onset (Solidus), °C		230

Specific Heat Capacity, J/kg-K		350
Specific Heat Capacity, J/kg-K		230

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		22

Otherwise Unclassified Properties

Density, g/cm³		8.5
Density, g/cm³		7.3

Embodied Carbon, kg CO₂/kg material		26
Embodied Carbon, kg CO₂/kg material		15

Embodied Energy, MJ/kg		410
Embodied Energy, MJ/kg		250

Common Calculations

Stiffness to Weight: Axial, points		6.4
Stiffness to Weight: Axial, points		3.9

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

Strength to Weight: Axial, points		5.2
Strength to Weight: Axial, points		2.2

Strength to Weight: Bending, points		7.7
Strength to Weight: Bending, points		4.5

Thermal Shock Resistance, points		5.6
Thermal Shock Resistance, points		3.6

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
Cadmium (Cd), %		0 to 0.0020

Copper (Cu), %		37 to 39
Copper (Cu), %		2.5 to 3.5

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

Manganese (Mn), %		1.5 to 2.5
Manganese (Mn), %		0

Nickel (Ni), %		1.5 to 2.5
Nickel (Ni), %		0 to 0.010

Silver (Ag), %		24 to 26
Silver (Ag), %		0 to 0.1

Tin (Sn), %		0
Tin (Sn), %		95.9 to 97.5

Zinc (Zn), %		31 to 35
Zinc (Zn), %		0 to 0.0010

Residuals, %		0 to 0.15
Residuals, %		0