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Solder Alloy 703 vs. N08320 Stainless Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while N08320 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is N08320 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 15
190
Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 35
40
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
78
Tensile Strength: Ultimate (UTS), MPa 57
580

Thermal Properties

Latent Heat of Fusion, J/g 61
300
Melting Completion (Liquidus), °C 220
1400
Melting Onset (Solidus), °C 220
1350
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 55
12
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.0

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.0
Embodied Carbon, kg CO2/kg material 18
4.9
Embodied Energy, MJ/kg 300
69

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
20
Strength to Weight: Bending, points 4.4
20
Thermal Diffusivity, mm2/s 33
3.3
Thermal Shock Resistance, points 3.7
13

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 0.050
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
40.4 to 50
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 2.5
Nickel (Ni), % 0 to 0.010
25 to 27
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