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Solder Alloy 401 vs. Nickel 725

Solder alloy 401 belongs to the otherwise unclassified metals classification, while nickel 725 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 401 and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
200
Elongation at Break, % 21
34
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
78
Tensile Strength: Ultimate (UTS), MPa 29
860

Thermal Properties

Latent Heat of Fusion, J/g 60
320
Melting Completion (Liquidus), °C 230
1340
Melting Onset (Solidus), °C 230
1270
Specific Heat Capacity, J/kg-K 220
440
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 17
1.6

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.5
Embodied Carbon, kg CO2/kg material 15
13
Embodied Energy, MJ/kg 250
190
Embodied Water, L/kg 1200
270

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 1.1
28
Strength to Weight: Bending, points 2.9
24
Thermal Shock Resistance, points 1.9
23

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.35
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
0 to 0.030
Chromium (Cr), % 0
19 to 22.5
Copper (Cu), % 0.5 to 0.9
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
2.3 to 15.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 0.35
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 0 to 0.010
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.2
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 98.5 to 99.5
0
Titanium (Ti), % 0
1.0 to 1.7
Zinc (Zn), % 0 to 0.0010
0