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Solder Alloy 201 vs. ASTM B631 Class C

Both solder alloy 201 and ASTM B631 class C 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 solder alloy 201 and the bottom bar is ASTM B631 class C.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
180 to 190
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 19
66 to 71

Thermal Properties

Latent Heat of Fusion, J/g 64
140 to 150
Melting Completion (Liquidus), °C 240
2090 to 2230
Specific Heat Capacity, J/kg-K 220
180
Thermal Conductivity, W/m-K 28
450 to 490
Thermal Expansion, µm/m-K 21
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
55 to 63
Electrical Conductivity: Equal Weight (Specific), % IACS 15
36 to 43

Otherwise Unclassified Properties

Density, g/cm3 7.3
13 to 14
Embodied Carbon, kg CO2/kg material 15
55 to 59
Embodied Energy, MJ/kg 250
860 to 920

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.4 to 7.6
Stiffness to Weight: Bending, points 17
14
Thermal Diffusivity, mm2/s 17
180 to 200