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Solder Alloy 703 vs. EN 1.4959 Stainless Steel

Solder alloy 703 belongs to the otherwise unclassified metals classification, while EN 1.4959 stainless steel belongs to the iron alloys. There are 22 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 EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 35
40
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
77
Tensile Strength: Ultimate (UTS), MPa 57
630

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
15

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
5.4
Embodied Energy, MJ/kg 300
76

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
22
Strength to Weight: Bending, points 4.4
20
Thermal Diffusivity, mm2/s 33
3.2
Thermal Shock Resistance, points 3.7
15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0.25 to 0.65
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
0.050 to 0.1
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.050
0 to 0.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
39.4 to 50.5
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.010
30 to 34
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.7
Silver (Ag), % 3.3 to 3.7
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 95.8 to 96.7
0
Titanium (Ti), % 0
0.25 to 0.65
Zinc (Zn), % 0 to 0.0010
0