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C68800 Brass vs. 60Pd-40Ag Alloy

C68800 brass belongs to the copper alloys classification, while 60Pd-40Ag alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C68800 brass and the bottom bar is 60Pd-40Ag alloy.

UNS C68800 Aluminum Brass60-Palladium 40-Silver Electrical Contact Alloy
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 2.0 to 36
1.1 to 28
Poisson's Ratio 0.32
0.38
Shear Modulus, GPa 41
37
Shear Strength, MPa 380 to 510
220 to 350
Tensile Strength: Ultimate (UTS), MPa 570 to 890
340 to 720

Thermal Properties

Latent Heat of Fusion, J/g 190
140
Melting Completion (Liquidus), °C 960
1360
Melting Onset (Solidus), °C 950
1310
Specific Heat Capacity, J/kg-K 400
240
Thermal Conductivity, W/m-K 40
29
Thermal Expansion, µm/m-K 19
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
4.1
Electrical Conductivity: Equal Weight (Specific), % IACS 20
3.2

Otherwise Unclassified Properties

Density, g/cm3 8.2
11

Common Calculations

Stiffness to Weight: Axial, points 7.3
4.9
Stiffness to Weight: Bending, points 19
14
Strength to Weight: Axial, points 19 to 30
8.4 to 18
Strength to Weight: Bending, points 19 to 25
9.6 to 16
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 19 to 30
16 to 34

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
0
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
0 to 0.1
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.050
0
Palladium (Pd), % 0
59.5 to 60.9
Silver (Ag), % 0
39.1 to 40.5
Zinc (Zn), % 21.3 to 24.1
0
Residuals, % 0
0 to 0.3