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Annealed 90-platinum 10-iridium vs. Annealed Monel 400

Annealed 90-platinum 10-iridium belongs to the otherwise unclassified metals classification, while annealed Monel 400 belongs to the nickel alloys. There are 16 material properties with values for both materials. Properties with values for just one material (17, 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 annealed 90-platinum 10-iridium and the bottom bar is annealed Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 34
40
Poisson's Ratio 0.38
0.32
Shear Modulus, GPa 74
62
Shear Strength, MPa 220
370
Tensile Strength: Ultimate (UTS), MPa 330
540

Thermal Properties

Latent Heat of Fusion, J/g 100
270
Melting Completion (Liquidus), °C 1830
1350
Specific Heat Capacity, J/kg-K 130
430
Thermal Expansion, µm/m-K 8.6
14

Otherwise Unclassified Properties

Density, g/cm3 22
8.9

Common Calculations

Stiffness to Weight: Axial, points 5.3
10
Stiffness to Weight: Bending, points 9.1
21
Strength to Weight: Axial, points 4.2
17
Strength to Weight: Bending, points 4.9
17
Thermal Shock Resistance, points 13
17

Alloy Composition


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Carbon (C), % 0
0 to 0.3
Copper (Cu), % 0
28 to 34
Iridium (Ir), % 9.5 to 10.5
0
Iron (Fe), % 0
0 to 2.5
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
63 to 72
Platinum (Pt), % 89.3 to 90.5
0
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.024
Residuals, % 0 to 0.2
0