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Solder Alloy 121 vs. K93500 Alloy

Solder alloy 121 belongs to the otherwise unclassified metals classification, while K93500 alloy belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 121 and the bottom bar is K93500 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 21
190
Poisson's Ratio 0.43
0.3
Shear Modulus, GPa 7.5
72
Tensile Strength: Ultimate (UTS), MPa 32
490 to 810

Thermal Properties

Latent Heat of Fusion, J/g 29
270
Melting Completion (Liquidus), °C 290
1430
Melting Onset (Solidus), °C 230
1380
Specific Heat Capacity, J/kg-K 140
460
Thermal Expansion, µm/m-K 28
12

Otherwise Unclassified Properties

Base Metal Price, % relative 80
30
Density, g/cm3 11
8.2
Embodied Carbon, kg CO2/kg material 5.6
4.7
Embodied Energy, MJ/kg 93
65
Embodied Water, L/kg 580
130

Common Calculations

Stiffness to Weight: Axial, points 1.1
13
Stiffness to Weight: Bending, points 8.6
23
Strength to Weight: Axial, points 0.84
17 to 27
Strength to Weight: Bending, points 2.1
17 to 23
Thermal Shock Resistance, points 3.9
15 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.1
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.25
Cobalt (Co), % 0
5.0
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
61.4 to 63
Lead (Pb), % 83.4 to 85.5
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.010
32
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.25
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 14.5 to 15.5
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0 to 0.1