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Solder Alloy 161 vs. ASTM B522 Class II

Both solder alloy 161 and ASTM B522 class II are otherwise unclassified metals. There are 18 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 161 and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
96
Elongation at Break, % 44
1.1 to 28
Poisson's Ratio 0.39
0.41
Shear Modulus, GPa 14
34
Tensile Strength: Ultimate (UTS), MPa 53
280 to 490

Thermal Properties

Latent Heat of Fusion, J/g 48
77
Melting Completion (Liquidus), °C 190
1030
Melting Onset (Solidus), °C 180
1030
Specific Heat Capacity, J/kg-K 190
160
Thermal Expansion, µm/m-K 25
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
11
Electrical Conductivity: Equal Weight (Specific), % IACS 11
5.7

Otherwise Unclassified Properties

Density, g/cm3 8.9
17

Common Calculations

Stiffness to Weight: Axial, points 2.4
3.1
Stiffness to Weight: Bending, points 13
8.9
Strength to Weight: Axial, points 1.7
4.4 to 7.8
Strength to Weight: Bending, points 3.5
5.5 to 8.0
Thermal Shock Resistance, points 4.1
13 to 24

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 1.2 to 1.6
0
Gold (Au), % 0 to 0.050
68.5 to 69.5
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 37.3 to 39.3
0
Nickel (Ni), % 0 to 0.010
0
Platinum (Pt), % 0
5.5 to 6.5
Silver (Ag), % 0 to 0.1
24.5 to 25.5
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.26