Solder Alloy 181 vs. R60804 Alloy

Both solder alloy 181 and R60804 alloy are otherwise unclassified metals. There are 16 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 solder alloy 181 and the bottom bar is R60804 alloy.

ISO Solder Alloy 181 (Pb98Ag2)UNS R60804 Zirconium-Tin Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		18
Elastic (Young's, Tensile) Modulus, GPa		98

Elongation at Break, %		41
Elongation at Break, %		22

Poisson's Ratio		0.44
Poisson's Ratio		0.34

Shear Modulus, GPa		6.1
Shear Modulus, GPa		36

Tensile Strength: Ultimate (UTS), MPa		27
Tensile Strength: Ultimate (UTS), MPa		430

Thermal Properties

Latent Heat of Fusion, J/g		26
Latent Heat of Fusion, J/g		250

Specific Heat Capacity, J/kg-K		130
Specific Heat Capacity, J/kg-K		270

Thermal Conductivity, W/m-K		24
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		29
Thermal Expansion, µm/m-K		6.0

Otherwise Unclassified Properties

Density, g/cm³		11
Density, g/cm³		6.5

Common Calculations

Stiffness to Weight: Axial, points		0.86
Stiffness to Weight: Axial, points		8.3

Stiffness to Weight: Bending, points		7.7
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		0.66
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		1.8
Strength to Weight: Bending, points		19

Thermal Diffusivity, mm²/s		16
Thermal Diffusivity, mm²/s		12

Thermal Shock Resistance, points		3.8
Thermal Shock Resistance, points		53

Alloy Composition

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

Antimony (Sb), %		0 to 0.2
Antimony (Sb), %		0

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

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

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

Chromium (Cr), %		0
Chromium (Cr), %		0.070 to 0.13

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

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

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

Iron (Fe), %		0 to 0.020
Iron (Fe), %		0.18 to 0.24

Lead (Pb), %		96.2 to 98
Lead (Pb), %		0

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

Silver (Ag), %		2.0 to 3.0
Silver (Ag), %		0

Tin (Sn), %		0 to 0.25
Tin (Sn), %		1.2 to 1.7

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

Zirconium (Zr), %		0
Zirconium (Zr), %		97.8 to 98.6

Residuals, %		0
Residuals, %		0 to 0.12