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Solder Alloy 704 vs. AWS E209

Solder alloy 704 belongs to the otherwise unclassified metals classification, while AWS E209 belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is AWS E209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 30
17
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
79
Tensile Strength: Ultimate (UTS), MPa 55
770

Thermal Properties

Latent Heat of Fusion, J/g 62
300
Melting Completion (Liquidus), °C 240
1420
Melting Onset (Solidus), °C 220
1370
Specific Heat Capacity, J/kg-K 220
480
Thermal Expansion, µm/m-K 22
14

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 19
4.4
Embodied Energy, MJ/kg 320
63

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
28
Strength to Weight: Bending, points 4.3
24
Thermal Shock Resistance, points 3.5
19

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 0.060
Chromium (Cr), % 0
20.5 to 24
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
51.5 to 64.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
4.0 to 7.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0 to 0.010
9.5 to 12
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 94.3 to 95.2
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.0010
0