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SAE-AISI H14 Steel vs. 85-platinum 15-iridium

SAE-AISI H14 steel belongs to the iron alloys classification, while 85-platinum 15-iridium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (9, 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 SAE-AISI H14 steel and the bottom bar is 85-platinum 15-iridium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 710 to 2030
560 to 730

Thermal Properties

Latent Heat of Fusion, J/g 270
110
Melting Completion (Liquidus), °C 1530
1820
Melting Onset (Solidus), °C 1490
1790
Specific Heat Capacity, J/kg-K 460
130
Thermal Expansion, µm/m-K 11
8.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.6

Otherwise Unclassified Properties

Density, g/cm3 8.1
22

Common Calculations

Stiffness to Weight: Axial, points 13
5.7
Stiffness to Weight: Bending, points 24
9.3
Strength to Weight: Axial, points 24 to 69
7.1 to 9.3
Strength to Weight: Bending, points 22 to 44
6.9 to 8.3
Thermal Shock Resistance, points 24 to 68
21 to 28

Alloy Composition

Carbon (C), % 0.35 to 0.45
0
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
0
Iridium (Ir), % 0
14.5 to 15.5
Iron (Fe), % 86.5 to 89.9
0
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Platinum (Pt), % 0
84.3 to 85.5
Silicon (Si), % 0.8 to 1.2
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 4.0 to 5.3
0
Residuals, % 0
0 to 0.2

Comparable Variants