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Solder Alloy 703 vs. S17400 Stainless Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while S17400 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 35
11 to 21
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
75
Tensile Strength: Ultimate (UTS), MPa 57
910 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 61
280
Melting Completion (Liquidus), °C 220
1440
Melting Onset (Solidus), °C 220
1400
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 55
17
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.6

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.8
Embodied Carbon, kg CO2/kg material 18
2.7
Embodied Energy, MJ/kg 300
39

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
32 to 49
Strength to Weight: Bending, points 4.4
27 to 35
Thermal Diffusivity, mm2/s 33
4.5
Thermal Shock Resistance, points 3.7
30 to 46

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
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.050
3.0 to 5.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
70.4 to 78.9
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
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