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AWS ER80S-B2 vs. Solder Alloy 121

AWS ER80S-B2 belongs to the iron alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ER80S-B2 and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
21
Elongation at Break, % 21
25
Poisson's Ratio 0.29
0.43
Shear Modulus, GPa 73
7.5
Tensile Strength: Ultimate (UTS), MPa 620
32

Thermal Properties

Latent Heat of Fusion, J/g 260
29
Melting Completion (Liquidus), °C 1460
290
Melting Onset (Solidus), °C 1420
230
Specific Heat Capacity, J/kg-K 470
140
Thermal Conductivity, W/m-K 40
31
Thermal Expansion, µm/m-K 13
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
80
Density, g/cm3 7.8
11
Embodied Carbon, kg CO2/kg material 1.6
5.6
Embodied Energy, MJ/kg 21
93
Embodied Water, L/kg 54
580

Common Calculations

Stiffness to Weight: Axial, points 13
1.1
Stiffness to Weight: Bending, points 24
8.6
Strength to Weight: Axial, points 22
0.84
Strength to Weight: Bending, points 21
2.1
Thermal Diffusivity, mm2/s 11
20
Thermal Shock Resistance, points 18
3.9

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.070 to 0.12
0
Chromium (Cr), % 1.2 to 1.5
0
Copper (Cu), % 0 to 0.35
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 95.2 to 97.5
0 to 0.020
Lead (Pb), % 0
83.4 to 85.5
Manganese (Mn), % 0.4 to 0.7
0
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
0 to 0.010
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.4 to 0.7
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
14.5 to 15.5
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.5
0