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Solder Alloy 171 vs. C87900 Brass

Solder alloy 171 belongs to the otherwise unclassified metals classification, while C87900 brass belongs to the copper alloys. There are 22 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 solder alloy 171 and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
110
Elongation at Break, % 45
25
Poisson's Ratio 0.39
0.31
Shear Modulus, GPa 14
41
Tensile Strength: Ultimate (UTS), MPa 48
480

Thermal Properties

Latent Heat of Fusion, J/g 47
190
Melting Completion (Liquidus), °C 180
930
Melting Onset (Solidus), °C 180
900
Specific Heat Capacity, J/kg-K 190
390
Thermal Conductivity, W/m-K 50
120
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
15
Electrical Conductivity: Equal Weight (Specific), % IACS 12
17

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 13
2.7
Embodied Energy, MJ/kg 210
46

Common Calculations

Stiffness to Weight: Axial, points 2.4
7.3
Stiffness to Weight: Bending, points 13
20
Strength to Weight: Axial, points 1.5
17
Strength to Weight: Bending, points 3.3
17
Thermal Diffusivity, mm2/s 30
37
Thermal Shock Resistance, points 3.7
16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.15
Antimony (Sb), % 0 to 0.2
0 to 0.050
Arsenic (As), % 0 to 0.030
0 to 0.050
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
63 to 69.2
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.4
Lead (Pb), % 34.7 to 36.7
0 to 0.25
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.010
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.8 to 1.2
Silver (Ag), % 1.8 to 2.2
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 61.5 to 62.5
0 to 0.25
Zinc (Zn), % 0 to 0.0010
30 to 36