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Solder Alloy 704 vs. ASTM B617 Coin Silver

Both solder alloy 704 and ASTM B617 coin silver are otherwise unclassified metals. There are 18 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 704 and the bottom bar is ASTM B617 coin silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
75
Elongation at Break, % 30
1.1 to 22
Poisson's Ratio 0.36
0.37
Shear Modulus, GPa 19
28
Tensile Strength: Ultimate (UTS), MPa 55
290 to 520

Thermal Properties

Latent Heat of Fusion, J/g 62
120
Melting Completion (Liquidus), °C 240
870
Melting Onset (Solidus), °C 220
780
Specific Heat Capacity, J/kg-K 220
250
Thermal Expansion, µm/m-K 22
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
83
Electrical Conductivity: Equal Weight (Specific), % IACS 15
72

Otherwise Unclassified Properties

Density, g/cm3 7.5
10

Common Calculations

Stiffness to Weight: Axial, points 3.8
4.1
Stiffness to Weight: Bending, points 17
14
Strength to Weight: Axial, points 2.1
7.7 to 14
Strength to Weight: Bending, points 4.3
9.3 to 14
Thermal Shock Resistance, points 3.5
14 to 25

Alloy Composition


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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), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0 to 0.050
Copper (Cu), % 0 to 0.050
9.0 to 10.4
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 to 0.010
Phosphorus (P), % 0
0 to 0.020
Silver (Ag), % 4.8 to 5.2
89.6 to 91
Tin (Sn), % 94.3 to 95.2
0
Zinc (Zn), % 0 to 0.0010
0 to 0.060
Residuals, % 0
0 to 0.060