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Solder Alloy 142 vs. K94200 Alloy

Solder alloy 142 belongs to the otherwise unclassified metals classification, while K94200 alloy belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 142 and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 33
140
Elongation at Break, % 37
5.0 to 32
Poisson's Ratio 0.4
0.34
Shear Modulus, GPa 12
54
Tensile Strength: Ultimate (UTS), MPa 43
500 to 710

Thermal Properties

Melting Onset (Solidus), °C 180
1440
Specific Heat Capacity, J/kg-K 170
500
Thermal Conductivity, W/m-K 45
15
Thermal Expansion, µm/m-K 25
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 11
3.0

Otherwise Unclassified Properties

Density, g/cm3 9.3
8.2

Common Calculations

Stiffness to Weight: Axial, points 2.0
9.8
Stiffness to Weight: Bending, points 11
21
Strength to Weight: Axial, points 1.3
17 to 24
Strength to Weight: Bending, points 2.9
17 to 22
Thermal Diffusivity, mm2/s 28
3.7
Thermal Shock Resistance, points 3.7
49 to 70