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90-platinum 10-iridium vs. C95200 Bronze

90-platinum 10-iridium belongs to the otherwise unclassified metals classification, while C95200 bronze belongs to the copper alloys. There are 14 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 90-platinum 10-iridium and the bottom bar is C95200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 5.5 to 34
29
Poisson's Ratio 0.38
0.34
Shear Modulus, GPa 74
42
Tensile Strength: Ultimate (UTS), MPa 330 to 550
520

Thermal Properties

Latent Heat of Fusion, J/g 100
230
Specific Heat Capacity, J/kg-K 130
430
Thermal Expansion, µm/m-K 8.6
18

Otherwise Unclassified Properties

Density, g/cm3 22
8.3

Common Calculations

Stiffness to Weight: Axial, points 5.3
7.6
Stiffness to Weight: Bending, points 9.1
19
Strength to Weight: Axial, points 4.2 to 7.1
17
Strength to Weight: Bending, points 4.9 to 6.9
17
Thermal Shock Resistance, points 13 to 22
19

Alloy Composition

Aluminum (Al), % 0
8.5 to 9.5
Copper (Cu), % 0
86 to 89
Iridium (Ir), % 9.5 to 10.5
0
Iron (Fe), % 0
2.5 to 4.0
Platinum (Pt), % 89.3 to 90.5
0
Residuals, % 0
0 to 1.0