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Grade N12MV Nickel vs. 85-platinum 15-iridium

Grade N12MV nickel belongs to the nickel alloys classification, while 85-platinum 15-iridium belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (12, 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 grade N12MV nickel and the bottom bar is 85-platinum 15-iridium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 6.8
5.5 to 34
Poisson's Ratio 0.31
0.38
Shear Modulus, GPa 84
81
Tensile Strength: Ultimate (UTS), MPa 600
560 to 730

Thermal Properties

Latent Heat of Fusion, J/g 320
110
Melting Completion (Liquidus), °C 1620
1820
Melting Onset (Solidus), °C 1570
1790
Specific Heat Capacity, J/kg-K 390
130
Thermal Expansion, µm/m-K 10
8.4

Otherwise Unclassified Properties

Density, g/cm3 9.2
22

Common Calculations

Stiffness to Weight: Axial, points 13
5.7
Stiffness to Weight: Bending, points 22
9.3
Strength to Weight: Axial, points 18
7.1 to 9.3
Strength to Weight: Bending, points 17
6.9 to 8.3
Thermal Shock Resistance, points 19
21 to 28

Alloy Composition

Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 0 to 1.0
0
Iridium (Ir), % 0
14.5 to 15.5
Iron (Fe), % 4.0 to 6.0
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 26 to 30
0
Nickel (Ni), % 60.2 to 69.8
0
Phosphorus (P), % 0 to 0.040
0
Platinum (Pt), % 0
84.3 to 85.5
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.2 to 0.6
0
Residuals, % 0
0 to 0.2