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Solder Alloy 721 vs. Grade 364 Molybdenum

Both solder alloy 721 and grade 364 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 364 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
310
Elongation at Break, % 17
6.2 to 11
Poisson's Ratio 0.36
0.31
Shear Modulus, GPa 19
120
Tensile Strength: Ultimate (UTS), MPa 50
580 to 720

Thermal Properties

Latent Heat of Fusion, J/g 61
370
Specific Heat Capacity, J/kg-K 220
250
Thermal Expansion, µm/m-K 22
7.0

Otherwise Unclassified Properties

Density, g/cm3 7.4
10
Embodied Carbon, kg CO2/kg material 17
28
Embodied Energy, MJ/kg 280
330

Common Calculations

Stiffness to Weight: Axial, points 3.8
17
Stiffness to Weight: Bending, points 17
22
Strength to Weight: Axial, points 1.9
16 to 20
Strength to Weight: Bending, points 4.1
15 to 17
Thermal Shock Resistance, points 3.2
19 to 24

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
0.010 to 0.040
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
99.2 to 99.5
Nickel (Ni), % 0 to 0.010
0 to 0.0050
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 2.3 to 2.7
0
Tin (Sn), % 95 to 96.6
0
Titanium (Ti), % 0
0.4 to 0.55
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0.060 to 0.12