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AWS E320 vs. Solder Alloy 704

AWS E320 belongs to the iron alloys classification, while solder alloy 704 belongs to the otherwise unclassified metals. 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 AWS E320 and the bottom bar is solder alloy 704.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
51
Elongation at Break, % 34
30
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 77
19
Tensile Strength: Ultimate (UTS), MPa 620
55

Thermal Properties

Latent Heat of Fusion, J/g 300
62
Melting Completion (Liquidus), °C 1410
240
Melting Onset (Solidus), °C 1360
220
Specific Heat Capacity, J/kg-K 460
220
Thermal Expansion, µm/m-K 14
22

Otherwise Unclassified Properties

Density, g/cm3 8.2
7.5
Embodied Carbon, kg CO2/kg material 6.5
19
Embodied Energy, MJ/kg 91
320

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 21
2.1
Strength to Weight: Bending, points 20
4.3
Thermal Shock Resistance, points 16
3.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 3.0 to 4.0
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 31.8 to 43.5
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 36
0 to 0.010
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.6
0
Silver (Ag), % 0
4.8 to 5.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
94.3 to 95.2
Zinc (Zn), % 0
0 to 0.0010