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EN 1.1233 Steel vs. 90-platinum 10-iridium

EN 1.1233 steel belongs to the iron alloys classification, while 90-platinum 10-iridium belongs to the otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (14, 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 EN 1.1233 steel and the bottom bar is 90-platinum 10-iridium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 72
74
Tensile Strength: Ultimate (UTS), MPa 680 to 760
330 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
100
Specific Heat Capacity, J/kg-K 470
130
Thermal Expansion, µm/m-K 12
8.6

Otherwise Unclassified Properties

Density, g/cm3 7.8
22

Common Calculations

Stiffness to Weight: Axial, points 13
5.3
Stiffness to Weight: Bending, points 24
9.1
Strength to Weight: Axial, points 24 to 27
4.2 to 7.1
Strength to Weight: Bending, points 22 to 24
4.9 to 6.9
Thermal Shock Resistance, points 22 to 24
13 to 22

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0.52 to 0.6
0
Copper (Cu), % 0 to 0.3
0
Iridium (Ir), % 0
9.5 to 10.5
Iron (Fe), % 98 to 99.1
0
Manganese (Mn), % 0.9 to 1.2
0
Oxygen (O), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.025
0
Platinum (Pt), % 0
89.3 to 90.5
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.2

Comparable Variants