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ASTM B631 Class A vs. Solder Alloy 133

Both ASTM B631 class A and solder alloy 133 are otherwise unclassified metals. There are 16 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 ASTM B631 class A and the bottom bar is solder alloy 133.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
33
Poisson's Ratio 0.3
0.4
Shear Modulus, GPa 85 to 86
12

Thermal Properties

Latent Heat of Fusion, J/g 160
42
Melting Completion (Liquidus), °C 2680 to 2690
220
Specific Heat Capacity, J/kg-K 160
180
Thermal Conductivity, W/m-K 420
47
Thermal Expansion, µm/m-K 11
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 47
11
Electrical Conductivity: Equal Weight (Specific), % IACS 25 to 29
10

Otherwise Unclassified Properties

Density, g/cm3 15
9.3
Embodied Carbon, kg CO2/kg material 43
9.4
Embodied Energy, MJ/kg 670
160

Common Calculations

Stiffness to Weight: Axial, points 8.5
2.0
Stiffness to Weight: Bending, points 14
12
Thermal Diffusivity, mm2/s 180
29