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Solder Alloy 601 vs. R30012 Cobalt

Solder alloy 601 belongs to the otherwise unclassified metals classification, while R30012 cobalt belongs to the cobalt alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 601 and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 31
220
Elongation at Break, % 83
1.0
Poisson's Ratio 0.41
0.28
Shear Modulus, GPa 11
86
Tensile Strength: Ultimate (UTS), MPa 12
830

Thermal Properties

Latent Heat of Fusion, J/g 43
320
Melting Completion (Liquidus), °C 120
1470
Melting Onset (Solidus), °C 120
1280
Specific Heat Capacity, J/kg-K 230
440
Thermal Conductivity, W/m-K 34
15
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 14
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.8
Embodied Water, L/kg 1330
480

Common Calculations

Stiffness to Weight: Axial, points 2.3
14
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 0.45
26
Strength to Weight: Bending, points 1.6
22
Thermal Diffusivity, mm2/s 20
3.8
Thermal Shock Resistance, points 1.2
23

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
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 51 to 52.5
0
Iron (Fe), % 0 to 0.020
0 to 3.0
Lead (Pb), % 0 to 0.070
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 47.5 to 48.5
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 0 to 0.0010
0