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Solder Alloy 402 vs. S44627 Stainless Steel

Solder alloy 402 belongs to the otherwise unclassified metals classification, while S44627 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 402 and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
200
Elongation at Break, % 20
24
Poisson's Ratio 0.36
0.27
Shear Modulus, GPa 19
80
Tensile Strength: Ultimate (UTS), MPa 57
490

Thermal Properties

Latent Heat of Fusion, J/g 64
290
Melting Completion (Liquidus), °C 310
1440
Melting Onset (Solidus), °C 230
1400
Specific Heat Capacity, J/kg-K 230
480
Thermal Conductivity, W/m-K 61
17
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 18
2.6

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.7
Embodied Carbon, kg CO2/kg material 15
2.9
Embodied Energy, MJ/kg 250
41
Embodied Water, L/kg 1180
160

Common Calculations

Stiffness to Weight: Axial, points 3.9
15
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.2
18
Strength to Weight: Bending, points 4.5
18
Thermal Diffusivity, mm2/s 37
4.6
Thermal Shock Resistance, points 3.6
16

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 0.010
Chromium (Cr), % 0
25 to 27.5
Copper (Cu), % 2.5 to 3.5
0 to 0.2
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
69.2 to 74.2
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 95.9 to 97.5
0
Zinc (Zn), % 0 to 0.0010
0