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SAE-AISI T6 Steel vs. 85-platinum 15-iridium

SAE-AISI T6 steel belongs to the iron alloys classification, while 85-platinum 15-iridium belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (11, 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 T6 steel and the bottom bar is 85-platinum 15-iridium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 880 to 2150
560 to 730

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Melting Completion (Liquidus), °C 1830
1820
Melting Onset (Solidus), °C 1770
1790
Specific Heat Capacity, J/kg-K 400
130
Thermal Expansion, µm/m-K 12
8.4

Otherwise Unclassified Properties

Density, g/cm3 9.5
22

Common Calculations

Stiffness to Weight: Axial, points 12
5.7
Stiffness to Weight: Bending, points 21
9.3
Strength to Weight: Axial, points 26 to 63
7.1 to 9.3
Strength to Weight: Bending, points 21 to 39
6.9 to 8.3
Thermal Shock Resistance, points 26 to 64
21 to 28

Alloy Composition

Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 4.0 to 4.8
0
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0 to 0.25
0
Iridium (Ir), % 0
14.5 to 15.5
Iron (Fe), % 55.9 to 63.5
0
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 0.4 to 1.0
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), % 0.2 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 18.5 to 21
0
Vanadium (V), % 1.5 to 2.1
0
Residuals, % 0
0 to 0.2

Comparable Variants