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90-platinum 10-iridium vs. AWS E310H

90-platinum 10-iridium belongs to the otherwise unclassified metals classification, while AWS E310H belongs to the iron alloys. There are 14 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 90-platinum 10-iridium and the bottom bar is AWS E310H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.5 to 34
11
Poisson's Ratio 0.38
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 330 to 550
690

Thermal Properties

Latent Heat of Fusion, J/g 100
300
Specific Heat Capacity, J/kg-K 130
480
Thermal Expansion, µm/m-K 8.6
14

Otherwise Unclassified Properties

Density, g/cm3 22
7.9

Common Calculations

Stiffness to Weight: Axial, points 5.3
14
Stiffness to Weight: Bending, points 9.1
25
Strength to Weight: Axial, points 4.2 to 7.1
25
Strength to Weight: Bending, points 4.9 to 6.9
22
Thermal Shock Resistance, points 13 to 22
17

Alloy Composition

Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 0
0 to 0.75
Iridium (Ir), % 9.5 to 10.5
0
Iron (Fe), % 0
44.2 to 53.7
Manganese (Mn), % 0
1.0 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0
20 to 22.5
Phosphorus (P), % 0
0 to 0.030
Platinum (Pt), % 89.3 to 90.5
0
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.2
0