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Solder Alloy 402 vs. S42030 Stainless Steel

Solder alloy 402 belongs to the otherwise unclassified metals classification, while S42030 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 402 and the bottom bar is S42030 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
200
Elongation at Break, % 20
16
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
76
Tensile Strength: Ultimate (UTS), MPa 57
670

Thermal Properties

Latent Heat of Fusion, J/g 64
280
Melting Completion (Liquidus), °C 310
1450
Melting Onset (Solidus), °C 230
1410
Specific Heat Capacity, J/kg-K 230
470
Thermal Conductivity, W/m-K 61
28
Thermal Expansion, µm/m-K 22
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 18
3.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 15
2.5
Embodied Energy, MJ/kg 250
34
Embodied Water, L/kg 1180
110

Common Calculations

Stiffness to Weight: Axial, points 3.9
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.2
24
Strength to Weight: Bending, points 4.5
22
Thermal Diffusivity, mm2/s 37
7.7
Thermal Shock Resistance, points 3.6
24

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 0.3
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 2.5 to 3.5
2.0 to 3.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
77.6 to 85
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 3.0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 95.9 to 97.5
0
Zinc (Zn), % 0 to 0.0010
0