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Solder Alloy 702 vs. R60706 Alloy

Both solder alloy 702 and R60706 alloy are otherwise unclassified metals. There are 16 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 702 and the bottom bar is R60706 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
98
Elongation at Break, % 21
16
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
37
Tensile Strength: Ultimate (UTS), MPa 53
580

Thermal Properties

Latent Heat of Fusion, J/g 61
250
Specific Heat Capacity, J/kg-K 220
270
Thermal Conductivity, W/m-K 62
17
Thermal Expansion, µm/m-K 22
6.3

Otherwise Unclassified Properties

Density, g/cm3 7.4
6.7

Common Calculations

Stiffness to Weight: Axial, points 3.8
8.1
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.0
24
Strength to Weight: Bending, points 4.2
23
Thermal Diffusivity, mm2/s 38
9.5
Thermal Shock Resistance, points 3.4
67

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 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.2
Lead (Pb), % 0 to 0.070
0
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.16
Silver (Ag), % 2.8 to 3.2
0
Tin (Sn), % 96.3 to 97.2
0
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
91 to 98