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Solder Alloy 721 vs. Grade 366 Molybdenum

Both solder alloy 721 and grade 366 molybdenum 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 721 and the bottom bar is grade 366 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
300
Elongation at Break, % 17
2.2
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 19
120
Tensile Strength: Ultimate (UTS), MPa 50
580

Thermal Properties

Latent Heat of Fusion, J/g 61
310
Specific Heat Capacity, J/kg-K 220
210
Thermal Expansion, µm/m-K 22
7.6

Otherwise Unclassified Properties

Density, g/cm3 7.4
12
Embodied Carbon, kg CO2/kg material 17
27
Embodied Energy, MJ/kg 280
340

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 1.9
13
Strength to Weight: Bending, points 4.1
13
Thermal Shock Resistance, points 3.2
18

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), % 0.8 to 1.2
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0.3 to 0.7
0
Gold (Au), % 0 to 0.050
0
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
66.9 to 73
Nickel (Ni), % 0 to 0.010
0 to 0.0020
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0025
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 2.3 to 2.7
0
Tin (Sn), % 95 to 96.6
0
Tungsten (W), % 0
27 to 33
Zinc (Zn), % 0 to 0.0010
0