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C91700 Bronze vs. ASTM B540 Palladium

C91700 bronze belongs to the copper alloys classification, while ASTM B540 palladium 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 C91700 bronze and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
1.1 to 14
Poisson's Ratio 0.34
0.38
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 330
830 to 1240
Tensile Strength: Yield (Proof), MPa 170
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 190
140
Melting Completion (Liquidus), °C 1020
1220
Melting Onset (Solidus), °C 850
1020
Specific Heat Capacity, J/kg-K 370
240
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 8.7
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1790 to 4660
Stiffness to Weight: Axial, points 6.9
4.7
Stiffness to Weight: Bending, points 18
12
Strength to Weight: Axial, points 11
18 to 27
Strength to Weight: Bending, points 12
15 to 20
Thermal Shock Resistance, points 12
41 to 61

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 84.2 to 87.5
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.25
0
Nickel (Ni), % 1.2 to 2.0
0
Palladium (Pd), % 0
34 to 36
Phosphorus (P), % 0 to 0.3
0
Platinum (Pt), % 0
9.5 to 10.5
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
29 to 31
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 11.3 to 12.5
0
Zinc (Zn), % 0 to 0.25
0.8 to 1.2
Residuals, % 0
0 to 0.3