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Solder Alloy 811 vs. C47940 Brass

Solder alloy 811 belongs to the otherwise unclassified metals classification, while C47940 brass belongs to the copper alloys. There are 21 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 811 and the bottom bar is C47940 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
100
Elongation at Break, % 38
14 to 34
Poisson's Ratio 0.35
0.31
Shear Modulus, GPa 19
40
Tensile Strength: Ultimate (UTS), MPa 53
380 to 520

Thermal Properties

Latent Heat of Fusion, J/g 63
170
Melting Completion (Liquidus), °C 200
850
Melting Onset (Solidus), °C 190
800
Specific Heat Capacity, J/kg-K 230
380
Thermal Conductivity, W/m-K 59
110
Thermal Expansion, µm/m-K 22
20

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.2
Embodied Carbon, kg CO2/kg material 14
2.8
Embodied Energy, MJ/kg 240
47
Embodied Water, L/kg 1200
330

Common Calculations

Stiffness to Weight: Axial, points 4.0
7.1
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.0
13 to 17
Strength to Weight: Bending, points 4.3
14 to 17
Thermal Diffusivity, mm2/s 35
36
Thermal Shock Resistance, points 3.3
13 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.8 to 3.2
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.050
63 to 66
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0.1 to 1.0
Lead (Pb), % 0 to 0.070
1.0 to 2.0
Nickel (Ni), % 0 to 0.010
0.1 to 0.5
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 87.8 to 89.7
1.2 to 2.0
Zinc (Zn), % 7.5 to 8.5
28.1 to 34.6
Residuals, % 0
0 to 0.4