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Solder Alloy 703 vs. AWS E3155

Solder alloy 703 belongs to the otherwise unclassified metals classification, while AWS E3155 belongs to the iron alloys. There are 20 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 703 and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
210
Elongation at Break, % 35
23
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
81
Tensile Strength: Ultimate (UTS), MPa 57
770

Thermal Properties

Latent Heat of Fusion, J/g 61
310
Melting Completion (Liquidus), °C 220
1460
Melting Onset (Solidus), °C 220
1410
Specific Heat Capacity, J/kg-K 220
450
Thermal Conductivity, W/m-K 55
13
Thermal Expansion, µm/m-K 22
13

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.4
Embodied Carbon, kg CO2/kg material 18
7.7
Embodied Energy, MJ/kg 300
110

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
26
Strength to Weight: Bending, points 4.4
22
Thermal Diffusivity, mm2/s 33
3.3
Thermal Shock Resistance, points 3.7
20

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 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.050
0 to 0.75
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
23.3 to 36.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
1.0 to 2.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.010
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 95.8 to 96.7
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.0010
0