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Formula: Mn
Form: Flake
Material: Manganese
CAS Number: 7439-96-5
Commodity: Metals
Maximum Flake Size: 25mm
Manganese flakes are small, metallic fragments of manganese, a critical element in metallurgy that’s known for its high purity and silvery appearance. Available in 27 sizes, these flakes are primarily utilized in the steel industry to improve the quality of steel by removing impurities and adding desirable properties. They also play a vital role in the production of various alloys where they enhance strength, ductility, and resistance to wear and corrosion. Manganese flakes are essential in manufacturing aluminum alloys, contributing to their increased durability and corrosion resistance. They’re similarly beneficial in copper alloys, where they improve mechanical properties. Their versatility makes them a valuable resource across multiple sectors, including electronics.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 25
Crystal structure Body centred cubic
Electronic structure Ar 3d⁵ 4s²
Valences shown 1, 2, 3, 4, 6, 7
Atomic weight( amu ) 54.938
Thermal neutron absorption cross-section( Barns ) 13.3
Photo-electric work function( eV ) 3.8
Atomic radius - Goldschmidt( nm ) 0.112
Ionisation potential( No./eV ) 2/ 15.64
Ionisation potential( No./eV ) 3/ 33.67
Ionisation potential( No./eV ) 4/ 51.2
Ionisation potential( No./eV ) Jun-95
Ionisation potential( No./eV ) 5/ 72.4
Ionisation potential( No./eV ) 1/ 7.43
Mechanical Properties
Element Value
Hardness - Mohs 5
Material condition Polycrystalline
Poisson's ratio 0.24
Bulk modulus( GPa ) 118
Tensile modulus( GPa ) 191
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 160@20@20°C
Physical Properties
Element Value
Boiling point( C ) 1962
Density( gcm⁻³ ) 7.4@20°C
Thermal Properties
Element Value
Melting point( C ) 1244
Latent heat of evaporation( J g⁻¹ ) 4207
Latent heat of fusion( J g⁻¹ ) 267
Specific heat( J K⁻¹ kg⁻¹ ) 477@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 7.81@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 23@0-100°C

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