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Solder Alloy 703 vs. EN 1.7383 Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while EN 1.7383 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is EN 1.7383 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 35
20 to 23
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
74
Tensile Strength: Ultimate (UTS), MPa 57
560 to 610

Thermal Properties

Latent Heat of Fusion, J/g 61
260
Melting Completion (Liquidus), °C 220
1470
Melting Onset (Solidus), °C 220
1430
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 55
39
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 17
8.8

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.9
Embodied Carbon, kg CO2/kg material 18
1.8
Embodied Energy, MJ/kg 300
23

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
20 to 22
Strength to Weight: Bending, points 4.4
19 to 20
Thermal Diffusivity, mm2/s 33
11
Thermal Shock Resistance, points 3.7
16 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.040
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 0.15
Chromium (Cr), % 0
2.0 to 2.5
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
94.3 to 96.6
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0