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ASTM B780 Alloy vs. Solder Alloy 201

Both ASTM B780 alloy and solder alloy 201 are otherwise unclassified metals. There are 16 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 ASTM B780 alloy and the bottom bar is solder alloy 201.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
50
Elongation at Break, % 1.1 to 9.1
38
Poisson's Ratio 0.36
0.35
Shear Modulus, GPa 30
19
Tensile Strength: Ultimate (UTS), MPa 330 to 590
41

Thermal Properties

Latent Heat of Fusion, J/g 140
64
Specific Heat Capacity, J/kg-K 270
220
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 70 to 76
12
Electrical Conductivity: Equal Weight (Specific), % IACS 62 to 68
15

Otherwise Unclassified Properties

Density, g/cm3 10
7.3

Common Calculations

Stiffness to Weight: Axial, points 4.5
3.8
Stiffness to Weight: Bending, points 14
17
Strength to Weight: Axial, points 9.1 to 16
1.6
Strength to Weight: Bending, points 11 to 15
3.6
Thermal Shock Resistance, points 16 to 29
2.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
4.5 to 5.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0 to 0.050
0 to 0.0020
Copper (Cu), % 23.5 to 25.7
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.050
0 to 0.020
Lead (Pb), % 0 to 0.030
0 to 0.070
Nickel (Ni), % 0.35 to 0.65
0 to 0.010
Silver (Ag), % 74 to 76
0 to 0.1
Tin (Sn), % 0
94 to 95.5
Zinc (Zn), % 0 to 0.060
0 to 0.0010