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Formula: Cr
Form: Powder
Material: Chromium
CAS Number: 7440-47-3
Commodity: Metals
Purity:
99%
Hazard Pictogram:
GHS09
Chromium Powder is a metallic powder composed of pure chromium. This versatile material is highly corrosion resistant and has a high melting point. It can be used to create wear-resistant coatings for machine parts. It can also be added to steel alloys to increase hardness and corrosion resistance. With 67 size variations available, our chromium powder meets the needs of research and industrial applications in metallurgy, coatings, catalysts and more.
Hazardous to the environment
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 | 24 |
| Crystal structure | Body centred cubic |
| Electronic structure | Ar 3d⁵ 4s¹ |
| Valences shown | 2, 3, 6 |
| Atomic weight( amu ) | 51.996 |
| Thermal neutron absorption cross-section( Barns ) | 3.1 |
| Photo-electric work function( eV ) | 4.4 |
| Natural isotope distribution( Mass No./% ) | 50/ 4.35 |
| Natural isotope distribution( Mass No./% ) | 52/ 83.79 |
| Natural isotope distribution( Mass No./% ) | 54/ 2.36 |
| Natural isotope distribution( Mass No./% ) | 53/ 9.5 |
| Atomic radius - Goldschmidt( nm ) | 0.128 |
| Ionisation potential( No./eV ) | 4/ 49.1 |
| Ionisation potential( No./eV ) | 3/ 31.0 |
| Ionisation potential( No./eV ) | 1/ 6.77 |
| Ionisation potential( No./eV ) | 6/ 90.6 |
| Ionisation potential( No./eV ) | 2/ 16.5 |
| Ionisation potential( No./eV ) | 5/ 69.3 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio | 0.21 |
| Poisson's ratio | 0.21 |
| Bulk modulus( GPa ) | 160.2 |
| Bulk modulus( GPa ) | 160.2 |
| Tensile modulus( GPa ) | 279 |
| Tensile modulus( GPa ) | 279 |
| Hardness - Vickers( kgf mm⁻² ) | 130 |
| Hardness - Vickers( kgf mm⁻² ) | 220 |
| Tensile strength( MPa ) | 689 |
| Tensile strength( MPa ) | 103 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 13.2@20@20°C |
| Temperature coefficient( K⁻¹ ) | 0.00214@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 2672 |
| Density( gcm⁻³ ) | 7.1@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1857 |
| Latent heat of evaporation( J g⁻¹ ) | 6580 |
| Latent heat of fusion( J g⁻¹ ) | 260 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 518@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 94@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 6.5@0-100°C |