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Solder Alloy 811 vs. ASTM B685 Alloy

Both solder alloy 811 and ASTM B685 alloy are otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 811 and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
120
Poisson's Ratio 0.35
0.37
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 53
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 63
180
Melting Completion (Liquidus), °C 200
1230
Melting Onset (Solidus), °C 190
1200
Specific Heat Capacity, J/kg-K 230
300
Thermal Expansion, µm/m-K 22
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
4.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
11

Common Calculations

Stiffness to Weight: Axial, points 4.0
6.1
Stiffness to Weight: Bending, points 17
15
Strength to Weight: Axial, points 2.0
17 to 27
Strength to Weight: Bending, points 4.3
16 to 21
Thermal Shock Resistance, points 3.3
28 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.8 to 3.2
0
Cadmium (Cd), % 0 to 0.0020
0 to 0.050
Copper (Cu), % 0 to 0.050
39.5 to 40.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.050
Lead (Pb), % 0 to 0.070
0 to 0.030
Nickel (Ni), % 0 to 0.010
0
Palladium (Pd), % 0
59 to 60.5
Silver (Ag), % 0 to 0.1
0 to 0.1
Tin (Sn), % 87.8 to 89.7
0
Zinc (Zn), % 7.5 to 8.5
0 to 0.060
Residuals, % 0
0 to 0.2