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Solder Alloy 135 vs. C68400 Brass

Solder alloy 135 belongs to the otherwise unclassified metals classification, while C68400 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 135 and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 27
110
Elongation at Break, % 20
18
Poisson's Ratio 0.41
0.31
Shear Modulus, GPa 9.5
41
Tensile Strength: Ultimate (UTS), MPa 35
540

Thermal Properties

Latent Heat of Fusion, J/g 36
210
Melting Completion (Liquidus), °C 250
840
Melting Onset (Solidus), °C 190
820
Specific Heat Capacity, J/kg-K 160
400
Thermal Conductivity, W/m-K 42
66
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.5
87
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
99

Otherwise Unclassified Properties

Base Metal Price, % relative 90
23
Density, g/cm3 10
7.9
Embodied Carbon, kg CO2/kg material 7.3
2.7
Embodied Energy, MJ/kg 120
47
Embodied Water, L/kg 720
320

Common Calculations

Stiffness to Weight: Axial, points 1.5
7.5
Stiffness to Weight: Bending, points 9.9
20
Strength to Weight: Axial, points 1.0
19
Strength to Weight: Bending, points 2.4
19
Thermal Diffusivity, mm2/s 27
21
Thermal Shock Resistance, points 3.5
18

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.5
Antimony (Sb), % 0.5 to 1.8
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Boron (B), % 0
0.0010 to 0.030
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.080
59 to 64
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 1.0
Lead (Pb), % 67.1 to 70
0 to 0.090
Manganese (Mn), % 0
0.2 to 1.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0
1.5 to 2.5
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 29.5 to 30.5
0 to 0.5
Zinc (Zn), % 0 to 0.0010
28.6 to 39.3
Residuals, % 0
0 to 0.5