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Solder Alloy 704 vs. AWS E310

Solder alloy 704 belongs to the otherwise unclassified metals classification, while AWS E310 belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is AWS E310.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 30
34
Poisson's Ratio 0.36
0.27
Shear Modulus, GPa 19
79
Tensile Strength: Ultimate (UTS), MPa 55
620

Thermal Properties

Latent Heat of Fusion, J/g 62
300
Melting Completion (Liquidus), °C 240
1400
Melting Onset (Solidus), °C 220
1360
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 50
14
Thermal Expansion, µm/m-K 22
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 15
2.4

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 19
4.6
Embodied Energy, MJ/kg 320
65

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
22
Strength to Weight: Bending, points 4.3
20
Thermal Diffusivity, mm2/s 30
3.7
Thermal Shock Resistance, points 3.5
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
0.080 to 0.2
Chromium (Cr), % 0
25 to 28
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
44.5 to 53.9
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
1.0 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0 to 0.010
20 to 22.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.75
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 94.3 to 95.2
0
Zinc (Zn), % 0 to 0.0010
0