MakeItFrom.com
Menu (ESC)

Solder Alloy 401 vs. ASTM B631 Class A

Both solder alloy 401 and ASTM B631 class A are otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is solder alloy 401 and the bottom bar is ASTM B631 class A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
220
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 19
85 to 86

Thermal Properties

Latent Heat of Fusion, J/g 60
160
Melting Completion (Liquidus), °C 230
2680 to 2690
Specific Heat Capacity, J/kg-K 220
160
Thermal Conductivity, W/m-K 66
420
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
40 to 47
Electrical Conductivity: Equal Weight (Specific), % IACS 17
25 to 29

Otherwise Unclassified Properties

Density, g/cm3 7.3
15
Embodied Carbon, kg CO2/kg material 15
43
Embodied Energy, MJ/kg 250
670

Common Calculations

Stiffness to Weight: Axial, points 3.8
8.5
Stiffness to Weight: Bending, points 17
14
Thermal Diffusivity, mm2/s 40
180