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Solder Alloy 703 vs. AWS E383

Solder alloy 703 belongs to the otherwise unclassified metals classification, while AWS E383 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 E383.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
210
Elongation at Break, % 35
34
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
80
Tensile Strength: Ultimate (UTS), MPa 57
580

Thermal Properties

Latent Heat of Fusion, J/g 61
320
Melting Completion (Liquidus), °C 220
1420
Melting Onset (Solidus), °C 220
1370
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 55
12
Thermal Expansion, µm/m-K 22
14

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.1
Embodied Carbon, kg CO2/kg material 18
6.4
Embodied Energy, MJ/kg 300
89

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
20
Strength to Weight: Bending, points 4.4
19
Thermal Diffusivity, mm2/s 33
3.1
Thermal Shock Resistance, points 3.7
15

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 0.030
Chromium (Cr), % 0
26.5 to 29
Copper (Cu), % 0 to 0.050
0.6 to 1.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
28.8 to 39.2
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
3.2 to 4.2
Nickel (Ni), % 0 to 0.010
30 to 33
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.9
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0