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85-platinum 15-iridium vs. AWS BVPd-1

Both 85-platinum 15-iridium and AWS BVPd-1 are otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 85-platinum 15-iridium and the bottom bar is AWS BVPd-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
150
Poisson's Ratio 0.38
0.37
Shear Modulus, GPa 81
56
Tensile Strength: Ultimate (UTS), MPa 560 to 730
240

Thermal Properties

Latent Heat of Fusion, J/g 110
200
Melting Completion (Liquidus), °C 1820
1240
Melting Onset (Solidus), °C 1790
1230
Specific Heat Capacity, J/kg-K 130
310
Thermal Expansion, µm/m-K 8.4
12

Otherwise Unclassified Properties

Density, g/cm3 22
11

Common Calculations

Stiffness to Weight: Axial, points 5.7
7.7
Stiffness to Weight: Bending, points 9.3
16
Strength to Weight: Axial, points 7.1 to 9.3
6.1
Strength to Weight: Bending, points 6.9 to 8.3
7.9
Thermal Shock Resistance, points 21 to 28
9.8

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Cobalt (Co), % 0
33.9 to 36
Iridium (Ir), % 14.5 to 15.5
0
Lead (Pb), % 0
0 to 0.0020
Nickel (Ni), % 0
0 to 0.060
Palladium (Pd), % 0
64 to 66
Phosphorus (P), % 0
0 to 0.0020
Platinum (Pt), % 84.3 to 85.5
0
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.2
0