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Solder Alloy 402 vs. SAE-AISI 4027 Steel

Solder alloy 402 belongs to the otherwise unclassified metals classification, while SAE-AISI 4027 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 402 and the bottom bar is SAE-AISI 4027 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
190
Elongation at Break, % 20
23
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 57
500

Thermal Properties

Latent Heat of Fusion, J/g 64
250
Melting Completion (Liquidus), °C 310
1460
Melting Onset (Solidus), °C 230
1420
Specific Heat Capacity, J/kg-K 230
470
Thermal Conductivity, W/m-K 61
49
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 18
8.1

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.8
Embodied Carbon, kg CO2/kg material 15
1.5
Embodied Energy, MJ/kg 250
19
Embodied Water, L/kg 1180
47

Common Calculations

Stiffness to Weight: Axial, points 3.9
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.2
18
Strength to Weight: Bending, points 4.5
18
Thermal Diffusivity, mm2/s 37
13
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
0.25 to 0.3
Copper (Cu), % 2.5 to 3.5
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
98.1 to 98.7
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 95.9 to 97.5
0
Zinc (Zn), % 0 to 0.0010
0