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AWS E312 vs. Solder Alloy 704

AWS E312 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 E312 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, % 25
30
Poisson's Ratio 0.27
0.36
Shear Modulus, GPa 80
19
Tensile Strength: Ultimate (UTS), MPa 740
55

Thermal Properties

Latent Heat of Fusion, J/g 310
62
Melting Completion (Liquidus), °C 1410
240
Melting Onset (Solidus), °C 1360
220
Specific Heat Capacity, J/kg-K 480
220
Thermal Expansion, µm/m-K 15
22

Otherwise Unclassified Properties

Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.6
19
Embodied Energy, MJ/kg 52
320

Common Calculations

Stiffness to Weight: Axial, points 15
3.8
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 27
2.1
Strength to Weight: Bending, points 24
4.3
Thermal Shock Resistance, points 18
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 0.15
0
Chromium (Cr), % 28 to 32
0
Copper (Cu), % 0 to 0.75
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 52.3 to 63.5
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 8.0 to 10.5
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
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