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Solder Alloy 502 vs. AWS BAg-8a

Both solder alloy 502 and AWS BAg-8a are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 15 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 502 and the bottom bar is AWS BAg-8a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 53
83
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 19
31
Tensile Strength: Ultimate (UTS), MPa 58
150

Thermal Properties

Latent Heat of Fusion, J/g 66
140
Melting Completion (Liquidus), °C 350
770
Melting Onset (Solidus), °C 220
770
Specific Heat Capacity, J/kg-K 230
290
Thermal Expansion, µm/m-K 22
19

Otherwise Unclassified Properties

Density, g/cm3 7.4
10

Common Calculations

Stiffness to Weight: Axial, points 4.0
4.6
Stiffness to Weight: Bending, points 17
15
Strength to Weight: Axial, points 2.2
4.2
Strength to Weight: Bending, points 4.5
6.3
Thermal Shock Resistance, points 3.6
6.7

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.080
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 3.5 to 4.5
26.4 to 28.8
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 0 to 0.070
0
Lithium (Li), % 0
0.25 to 0.5
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 0.8 to 1.2
71 to 73
Tin (Sn), % 93.8 to 95.7
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.15