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C51000 Bronze vs. ASTM B563 Pd-Ag-Cu

C51000 bronze belongs to the copper alloys classification, while ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C51000 bronze and the bottom bar is ASTM B563 Pd-Ag-Cu.

UNS C51000 (CW451K) Phosphor BronzeASTM B563 Palladium-Silver-Copper Electrical Contact Alloy
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 2.7 to 64
7.0 to 17
Poisson's Ratio 0.34
0.37
Shear Modulus, GPa 42
37
Shear Strength, MPa 250 to 460
470 to 690
Tensile Strength: Ultimate (UTS), MPa 330 to 780
760 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 200
150
Melting Completion (Liquidus), °C 1050
1180
Melting Onset (Solidus), °C 960
1030
Specific Heat Capacity, J/kg-K 380
260
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
5.6 to 6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 18
4.6 to 5.5

Otherwise Unclassified Properties

Density, g/cm3 8.8
11

Common Calculations

Stiffness to Weight: Axial, points 7.0
5.2
Stiffness to Weight: Bending, points 18
14
Strength to Weight: Axial, points 10 to 25
19 to 30
Strength to Weight: Bending, points 12 to 21
17 to 22
Thermal Shock Resistance, points 12 to 28
39 to 61

Alloy Composition

Copper (Cu), % 92.9 to 95.5
15.5 to 16.5
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.050
0
Nickel (Ni), % 0
0.8 to 1.2
Palladium (Pd), % 0
43 to 45
Phosphorus (P), % 0.030 to 0.35
0
Platinum (Pt), % 0
0.8 to 1.2
Silver (Ag), % 0
37 to 39
Tin (Sn), % 4.5 to 5.8
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.4