ALON-Does anyone know the strength of this material compared to say, steel?

AI Thread Summary
ALON has a lattice constant ranging from 7.956A to 7.936A and a density of 3.696 to 3.691 g/cc, making it less dense than many steel alloys. It has a melting point of 2150°C and exhibits a Young's modulus of 46.9x10^6 psi, indicating high stiffness. The material's hardness is measured at 1850 Kg/mm2, and it has a flexure strength of 55,000 psi, showcasing its durability. While ALON has a lower shear modulus compared to steel, its fracture toughness is 2.0 MPa-m1/2. The comparison of ALON to steel is complex due to the variety of steel alloys available.
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Lattice Constant: 7.956A – 7.936A

Density: 3.696 – 3.691 g/cc

Form: Polycrystalline

Melting Point: 2150°C

Young's Modulus: 46.9x106 psi

Shear Modulus: 18.9x106 psi

Poisson's Ratio: 0.24

Hardness: 1850 Kg/mm2 (Knoop Indentation, 200g load)

Fracture Toughness: 2.0 MPa-m1/2

Flexure Strength: 55,000 psi

Specific Heat: 0.22 cal/g-°C

Transmission Limits: 0.22 to 6 microns
 
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Higher E, Lower shear mod., it's hard, less dense.

BTW, "steel" is meaningless. There are hundreds of alloys and schedules.
 

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