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ASTM B631 Class B vs. Solder Alloy 801

Both ASTM B631 class B and solder alloy 801 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.

For each property being compared, the top bar is ASTM B631 class B and the bottom bar is solder alloy 801.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
53
Poisson's Ratio 0.31
0.35
Shear Modulus, GPa 78 to 79
20

Thermal Properties

Latent Heat of Fusion, J/g 150
64
Melting Completion (Liquidus), °C 2460 to 2480
200
Specific Heat Capacity, J/kg-K 170
240
Thermal Conductivity, W/m-K 450
61
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
15
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
19

Otherwise Unclassified Properties

Density, g/cm3 14
7.2
Embodied Carbon, kg CO2/kg material 49
14
Embodied Energy, MJ/kg 760
240

Common Calculations

Stiffness to Weight: Axial, points 8.1
4.1
Stiffness to Weight: Bending, points 14
17
Thermal Diffusivity, mm2/s 190
36