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Solder Alloy 704 vs. R05400 Tantalum

Both solder alloy 704 and R05400 tantalum are otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 30
1.1 to 28
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
69
Tensile Strength: Ultimate (UTS), MPa 55
210 to 540

Thermal Properties

Latent Heat of Fusion, J/g 62
140
Specific Heat Capacity, J/kg-K 220
140
Thermal Conductivity, W/m-K 50
59
Thermal Expansion, µm/m-K 22
6.5

Otherwise Unclassified Properties

Density, g/cm3 7.5
17

Common Calculations

Stiffness to Weight: Axial, points 3.8
6.2
Stiffness to Weight: Bending, points 17
11
Strength to Weight: Axial, points 2.1
3.6 to 9.0
Strength to Weight: Bending, points 4.3
4.8 to 8.8
Thermal Diffusivity, mm2/s 30
25
Thermal Shock Resistance, points 3.5
13 to 32

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 0.010
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.0015
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.010
Lead (Pb), % 0 to 0.070
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.010
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 4.8 to 5.2
0
Tantalum (Ta), % 0
99.7 to 100
Tin (Sn), % 94.3 to 95.2
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.0010
0