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Solder Alloy 131 vs. K94200 Alloy

Solder alloy 131 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 131 and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
140
Elongation at Break, % 47
5.0 to 32
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 14
54
Tensile Strength: Ultimate (UTS), MPa 31
500 to 710

Thermal Properties

Melting Onset (Solidus), °C 180
1440
Specific Heat Capacity, J/kg-K 190
500
Thermal Conductivity, W/m-K 55
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 12
3.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.2

Common Calculations

Stiffness to Weight: Axial, points 2.4
9.8
Stiffness to Weight: Bending, points 13
21
Strength to Weight: Axial, points 1.0
17 to 24
Strength to Weight: Bending, points 2.5
17 to 22
Thermal Diffusivity, mm2/s 33
3.7
Thermal Shock Resistance, points 2.4
49 to 70