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90-platinum 10-iridium vs. 90-silver 10-nickel

Both 90-platinum 10-iridium and 90-silver 10-nickel are otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (6, 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 90-silver 10-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
82
Poisson's Ratio 0.38
0.36
Shear Modulus, GPa 74
30
Tensile Strength: Ultimate (UTS), MPa 330 to 550
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 100
130
Specific Heat Capacity, J/kg-K 130
260
Thermal Expansion, µm/m-K 8.6
19

Otherwise Unclassified Properties

Density, g/cm3 22
10

Common Calculations

Stiffness to Weight: Axial, points 5.3
4.4
Stiffness to Weight: Bending, points 9.1
14
Strength to Weight: Axial, points 4.2 to 7.1
6.7 to 11
Strength to Weight: Bending, points 4.9 to 6.9
8.5 to 12
Thermal Shock Resistance, points 13 to 22
11 to 19

Alloy Composition

Iridium (Ir), % 9.5 to 10.5
0
Nickel (Ni), % 0
8.8 to 11
Platinum (Pt), % 89.3 to 90.5
0
Silver (Ag), % 0
89 to 91
Residuals, % 0
0 to 0.2

Comparable Variants