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Formula: B
Form: Powder
Material: Boron
CAS Number: 7440-42-8
Commodity: Metals
Boron Powder is available in 38 variations for the flexibility to be customized to the needs of different applications. These differ in particle size, morphology, purity levels and other properties. Boron's hardness, strength and corrosion resistance at high temperatures make it useful for metallurgical additives. It also has applications in semiconductors, armor and nuclear reactors. Whether you need a pure powder or wish to create an alloy, our Boron Powder range offers the optimal grade you’re looking for.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Powder
Mean Particle Size Nominal
Minimum Particle Size Nominal
Maximum Particle Size Nominal
Maximum Particle Size Nominal
Particle Size D10 Nominal
Particle Size D50 Nominal
Particle Size D90 Nominal

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 5
Crystal structure Tetragonal
Electronic structure He 2s² 2p¹
Valences shown 3
Atomic weight( amu ) 10.81
Thermal neutron absorption cross-section( Barns ) 672
Photo-electric work function( eV ) 4.5
Natural isotope distribution( Mass No./% ) 11/ 80.2
Natural isotope distribution( Mass No./% ) 10/ 19.8
Atomic radius - Goldschmidt( nm ) 0.097
Ionisation potential( No./eV ) 4/ 259
Ionisation potential( No./eV ) 2/ 25.2
Ionisation potential( No./eV ) 1/ 8.30
Ionisation potential( No./eV ) 5/ 340
Ionisation potential( No./eV ) 337.9
Mechanical Properties
Element Value
Hardness - Mohs 9.5
Material condition Arc melted
Tensile modulus( GPa ) 441
Tensile strength( MPa ) 1580-2410
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 1.8x10¹²@27@27°C
Physical Properties
Element Value
Boiling point( C ) 3700
Density( gcm⁻³ ) 2.34-2.37@20°C
Thermal Properties
Element Value
Melting point( C ) 2180
Latent heat of evaporation( J g⁻¹ ) 35000
Latent heat of fusion( J g⁻¹ ) 2090
Specific heat( J K⁻¹ kg⁻¹ ) 1030@25°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8.3@0-100°C

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