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EN 1.4923 Stainless Steel vs. 90-platinum 10-iridium

EN 1.4923 stainless steel belongs to the iron alloys classification, while 90-platinum 10-iridium belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (19, 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 1.4923 stainless steel and the bottom bar is 90-platinum 10-iridium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
5.5 to 34
Poisson's Ratio 0.28
0.38
Shear Modulus, GPa 76
74
Shear Strength, MPa 540 to 590
220 to 320
Tensile Strength: Ultimate (UTS), MPa 870 to 980
330 to 550

Thermal Properties

Latent Heat of Fusion, J/g 270
100
Specific Heat Capacity, J/kg-K 480
130
Thermal Expansion, µm/m-K 11
8.6

Otherwise Unclassified Properties

Density, g/cm3 7.8
22

Common Calculations

Stiffness to Weight: Axial, points 14
5.3
Stiffness to Weight: Bending, points 25
9.1
Strength to Weight: Axial, points 31 to 35
4.2 to 7.1
Strength to Weight: Bending, points 26 to 28
4.9 to 6.9
Thermal Shock Resistance, points 30 to 34
13 to 22

Alloy Composition

Carbon (C), % 0.18 to 0.24
0
Chromium (Cr), % 11 to 12.5
0
Iridium (Ir), % 0
9.5 to 10.5
Iron (Fe), % 83.5 to 87.1
0
Manganese (Mn), % 0.4 to 0.9
0
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Phosphorus (P), % 0 to 0.025
0
Platinum (Pt), % 0
89.3 to 90.5
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Vanadium (V), % 0.25 to 0.35
0
Residuals, % 0
0 to 0.2

Comparable Variants