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Solder Alloy 703 vs. EN 1.0644 Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while EN 1.0644 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is EN 1.0644 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
200
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 35
17
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 57
690

Thermal Properties

Latent Heat of Fusion, J/g 61
250
Melting Completion (Liquidus), °C 220
1460
Melting Onset (Solidus), °C 220
1420
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 55
47
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 17
8.5

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.8
Embodied Carbon, kg CO2/kg material 18
1.8
Embodied Energy, MJ/kg 300
24

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
24
Strength to Weight: Bending, points 4.4
22
Thermal Diffusivity, mm2/s 33
13
Thermal Shock Resistance, points 3.7
22

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0.010 to 0.050
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
0.16 to 0.22
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.3
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
96.1 to 98.4
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
1.3 to 1.7
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0 to 0.010
0 to 0.4
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.1 to 0.5
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.035
Tin (Sn), % 95.8 to 96.7
0
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0.080 to 0.15
Zinc (Zn), % 0 to 0.0010
0