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Solder Alloy 601 vs. R30003 Cobalt

Solder alloy 601 belongs to the otherwise unclassified metals classification, while R30003 cobalt belongs to the cobalt alloys. There are 21 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 601 and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 31
210
Elongation at Break, % 83
10 to 73
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 11
83
Tensile Strength: Ultimate (UTS), MPa 12
970 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 43
310
Melting Completion (Liquidus), °C 120
1400
Melting Onset (Solidus), °C 120
1440
Specific Heat Capacity, J/kg-K 230
450
Thermal Conductivity, W/m-K 34
13
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 14
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.4
Embodied Water, L/kg 1330
400

Common Calculations

Stiffness to Weight: Axial, points 2.3
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 0.45
32 to 57
Strength to Weight: Bending, points 1.6
26 to 38
Thermal Diffusivity, mm2/s 20
3.3
Thermal Shock Resistance, points 1.2
26 to 45

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
Boron (B), % 0
0 to 0.1
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
39 to 41
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
10 to 20.5
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0 to 0.010
14 to 16
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 47.5 to 48.5
0
Zinc (Zn), % 0 to 0.0010
0