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90-platinum 10-iridium vs. Solder Alloy 133

Both 90-platinum 10-iridium and solder alloy 133 are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (10, 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 solder alloy 133.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
33
Elongation at Break, % 5.5 to 34
34
Poisson's Ratio 0.38
0.4
Shear Modulus, GPa 74
12
Tensile Strength: Ultimate (UTS), MPa 330 to 550
41

Thermal Properties

Latent Heat of Fusion, J/g 100
42
Specific Heat Capacity, J/kg-K 130
180
Thermal Expansion, µm/m-K 8.6
25

Otherwise Unclassified Properties

Density, g/cm3 22
9.3

Common Calculations

Stiffness to Weight: Axial, points 5.3
2.0
Stiffness to Weight: Bending, points 9.1
12
Strength to Weight: Axial, points 4.2 to 7.1
1.2
Strength to Weight: Bending, points 4.9 to 6.9
2.9
Thermal Shock Resistance, points 13 to 22
3.5

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0.2 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iridium (Ir), % 9.5 to 10.5
0
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
48.5 to 50.3
Nickel (Ni), % 0
0 to 0.010
Platinum (Pt), % 89.3 to 90.5
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
49.5 to 50.5
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.2
0