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CC490K Brass vs. Solder Alloy 704

CC490K brass belongs to the copper alloys classification, while solder alloy 704 belongs to the otherwise unclassified metals. There are 23 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 CC490K brass and the bottom bar is solder alloy 704.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 76
14
Elastic (Young's, Tensile) Modulus, GPa 110
51
Elongation at Break, % 15
30
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 40
19
Tensile Strength: Ultimate (UTS), MPa 230
55

Thermal Properties

Latent Heat of Fusion, J/g 190
62
Melting Completion (Liquidus), °C 980
240
Melting Onset (Solidus), °C 910
220
Specific Heat Capacity, J/kg-K 370
220
Thermal Conductivity, W/m-K 72
50
Thermal Expansion, µm/m-K 19
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
13
Electrical Conductivity: Equal Weight (Specific), % IACS 16
15

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.5
Embodied Carbon, kg CO2/kg material 2.9
19
Embodied Energy, MJ/kg 47
320

Common Calculations

Stiffness to Weight: Axial, points 6.8
3.8
Stiffness to Weight: Bending, points 18
17
Strength to Weight: Axial, points 7.3
2.1
Strength to Weight: Bending, points 9.5
4.3
Thermal Diffusivity, mm2/s 22
30
Thermal Shock Resistance, points 8.2
3.5

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.0010
Antimony (Sb), % 0 to 0.3
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 81 to 86
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.5
0 to 0.020
Lead (Pb), % 3.0 to 6.0
0 to 0.070
Nickel (Ni), % 0 to 2.0
0 to 0.010
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 0
4.8 to 5.2
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 2.0 to 3.5
94.3 to 95.2
Zinc (Zn), % 7.0 to 9.5
0 to 0.0010