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R05400 Tantalum vs. Solder Alloy 402

Both R05400 tantalum and solder alloy 402 are otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (9, 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 R05400 tantalum and the bottom bar is solder alloy 402.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
52
Elongation at Break, % 1.1 to 28
20
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 69
19
Tensile Strength: Ultimate (UTS), MPa 210 to 540
57

Thermal Properties

Latent Heat of Fusion, J/g 140
64
Specific Heat Capacity, J/kg-K 140
230
Thermal Conductivity, W/m-K 59
61
Thermal Expansion, µm/m-K 6.5
22

Otherwise Unclassified Properties

Density, g/cm3 17
7.3
Embodied Water, L/kg 650
1180

Common Calculations

Stiffness to Weight: Axial, points 6.2
3.9
Stiffness to Weight: Bending, points 11
17
Strength to Weight: Axial, points 3.6 to 9.0
2.2
Strength to Weight: Bending, points 4.8 to 8.8
4.5
Thermal Diffusivity, mm2/s 25
37
Thermal Shock Resistance, points 13 to 32
3.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
2.5 to 3.5
Gold (Au), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.0015
0
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.010
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 0.010
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.030
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.1
Tantalum (Ta), % 99.7 to 100
0
Tin (Sn), % 0
95.9 to 97.5
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.0010