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Solder Alloy 142 vs. ASTM A302 Alloy Steel

Solder alloy 142 belongs to the otherwise unclassified metals classification, while ASTM A302 alloy 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 142 and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
190
Elongation at Break, % 37
20 to 23
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 12
73
Tensile Strength: Ultimate (UTS), MPa 43
590 to 620

Thermal Properties

Latent Heat of Fusion, J/g 42
250
Melting Completion (Liquidus), °C 210
1460
Melting Onset (Solidus), °C 180
1420
Specific Heat Capacity, J/kg-K 170
470
Thermal Conductivity, W/m-K 45
39 to 51
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.2 to 8.4

Otherwise Unclassified Properties

Density, g/cm3 9.3
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 9.4
1.5 to 1.6
Embodied Energy, MJ/kg 160
20 to 21
Embodied Water, L/kg 890
48 to 50

Common Calculations

Stiffness to Weight: Axial, points 2.0
13
Stiffness to Weight: Bending, points 11
24
Strength to Weight: Axial, points 1.3
21 to 22
Strength to Weight: Bending, points 2.9
20 to 21
Thermal Diffusivity, mm2/s 28
10 to 14
Thermal Shock Resistance, points 3.7
17 to 18