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Solder Alloy 703 vs. SAE-AISI O6 Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while SAE-AISI O6 steel belongs to the iron alloys. There are 21 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 703 and the bottom bar is SAE-AISI O6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
180
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
71
Tensile Strength: Ultimate (UTS), MPa 57
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 61
260
Melting Completion (Liquidus), °C 220
1430
Melting Onset (Solidus), °C 220
1390
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 55
43
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 17
8.6

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.7
Embodied Carbon, kg CO2/kg material 18
1.5
Embodied Energy, MJ/kg 300
21

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
24 to 74
Strength to Weight: Bending, points 4.4
22 to 47
Thermal Diffusivity, mm2/s 33
12
Thermal Shock Resistance, points 3.7
22 to 69

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
1.3 to 1.6
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
94.6 to 97.7
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.3 to 1.1
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.010
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.55 to 1.5
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0