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Chromium , Cr
Chromium is a transition metal renowned for its hardness, high melting point, and corrosion resistance. It is essential in producing stainless steel, enhancing metal finishes through chrome plating, and contributing vibrant colours as a pigment. Its durability and performance make it valuable in aerospace components and chemical processes.
Testbourne provides high-quality chromium products, ensuring reliable materials for both scientific and industrial applications.
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Custom EnquiryCr Pieces 1-4mm 99.95% Pure
Chromium
Cr Pieces 3-8mm 99.99% Pure
Chromium
Cr Pieces 0.8-3mm 99.2% Pure
Chromium
Cr Pellets 3mm x 2mm 99.99% Pure
Chromium
Cr Pellets 6mm dia. x 6mm long 99.99% Pure
Chromium
Cr2O3 Pieces 3-12mm 99.9% Pure
Chromium Oxide
Cr Pieces 1-3mm 99.99% Pure
Chromium
Cr Pieces 3-12mm 99.99% Pure
Chromium
Cr Pieces 3mm dia. x 3mm long 99.99% Pure
Chromium
Cr2O3 Pieces 1-6mm 99.95% Pure
Chromium Oxide
Cr-SiO2 60-40wt% Pieces 1-3mm & smaller 99.99% Pure
Chromium-Silicon Dioxide
Cr2O3 Pieces 1-4mm 99.9% Pure
Chromium Oxide
Cr Pieces 1-3mm 99.6% Pure
Chromium
CrO2 Powder -300 Mesh 99% Pure
Chromium(IV) oxide
Cr3C2 Powder -200 +325 Mesh 99.5% Pure
Chromium Carbide
Cr3C2 Powder -325 Mesh + 10 Microns 99.5% Pure
Chromium Carbide
4.3 UN2813 PG I
Cr7C3 Powder -325 Mesh (typ. =10 Microns) 99.5% Pure
Chromium Carbide
4.3 UN2813 PG I
Cr23C6 Powder -325 Mesh (typ. =10 Microns) 99.5% Pure
Chromium Carbide
4.3 UN2813 PG I
CrCl2 Powder -80 Mesh 99.9% Pure
Chromium Chloride
8 UN1759 PG II
CrF3 Powder -80 Mesh 99.9% Pure
Chromium Fluoride
8 UN1756 PG II
Cr2N Powder -325 Mesh (typ. =15 Microns) 99% Pure
Chromium Nitride
4.3 UN2813 PG III
Cr2O3 Powder -325 Mesh (typ. =10 Microns) 99.999% Pure
Chromium Oxide
Cr2O3 Powder D90: 7.85 Microns 99.5% Pure
Chromium Oxide
Cr2O3 Powder =5 Microns 99.9+% Pure
Chromium Oxide
Cr2O3 Powder -400 Mesh 99.9% Pure
Chromium Oxide
Cr2O3 Powder -325 Mesh 99.9% Pure
Chromium Oxide
Cr2O3 Powder -325 Mesh (typ. =10 Microns) 99.999% Pure
Chromium Oxide
Cr2O3 Powder -325 Mesh (typ. =10 Microns fused) 99% Pure
Chromium Oxide
CrSe Powder -325 Mesh (typ. =10 Microns) 99.5% Pure
Chromium Selenide
6.1 UN3283 PG III
Cr2S3 Powder -200 Mesh 99% Pure
Chromium Sulphide
Cr2Te3 Powder -325 Mesh (typ =10 Microns) 99.5% Pure
Chromium Telluride
6.1 UN3288 PG III
Cr2O3 Powder 7.85 Micron 99.5+% Pure
Chromium Oxide
Cr Rod 3mm dia. x 50mm long 99.95% Pure
Chromium
Cr Rod 3.175mm dia. x 50mm long 99.95% Pure
Chromium
Cr Rod 4mm Dia. x 27mm long 99.95% Pure
Chromium
Cr Rod 12.7mm dia. x 250mm long 99.95% Pure
Chromium
Cr Rod 2mm dia. x 200mm long 99.95% Pure
Chromium
Cr Rod 2mm dia. (+0/-0.2) x 27mm long 99.95% Pure
Chromium
Cr Rod 10mm dia. x 300mm long 99.95% Pure
Chromium
Cr Rod 10mm dia. x 100mm long 99.9% Pure
Chromium
Cr Rod 6.35mm dia. x 100mm long 99.95% Pure
Chromium
Cr Rod 1" dia. x 2" long 99.95% Pure
Chromium
Cr Rod 1.5mm dia. x 45mm long 99.95% Pure
Chromium
Cr Rod 5mm dia. x 5mm long 99.9% Pure
Chromium
Cr Wire 2.0mm dia. x 200mm long 99.95% Pure
Chromium
Cr Wire 2mm dia. x 65mm long 99.99% Pure
Chromium
Cr TRG 24mm dia. x 0.3mm Tk 99.95% Pure
Chromium
Cr TRG 23mm dia. x 1mm Tk 99.95% Pure
Chromium
Cr TRG 12.5mm dia. x 1mm Tk 99.95% Pure
Chromium
Chromium Cr,
Available Purities 99.5%, 99.7%, 99.9%, 99.95%, 99.99%
Cr TRG 203.2mm dia. x 6.35mm Tk 99.99% Pure
Chromium
Cr TRG 200mm dia. x 6mm Tk 99.95% Pure
Chromium
Cr TRG 50.8mm dia. x 5mm Tk 99.95% Pure
Chromium
Cr TRG 500mm x 200mm x 6mm Tk (2 sections) 99.95% Pure
Chromium
Chromium Nitride CrN, Purity 99.5%
Chromium Boride-Aluminium CrB2-Al,
Available in various ratios wt% or at%, Purity 99.5%
Chromium-Silicon monoxide Cr-SiO,
Available in various ratios wt% or at%, Purity 99.95%
Chromium Boride CrB2,
Available purity 99.5% & 99.9%
CrB2 TRG 101.6mm dia. x 6.35mm Tk 99.9% Pure
Chromium Boride
CrB2 TRG 76.2mm dia. x 6.35mm Tk 99.5% Pure
Chromium boride
Chromium-Copper-Iron-Nickel CrCuFeNi2,
Available in various ratios wt% or at%, Purity 99.9%
Chromium Oxide Cr2O3,
Available purity 99.95%
Cr2O3 TRG 25.4mm dia. x 6.35mm Tk 99.95% Pure
Chromium Oxide
Cr2O3 TRG 76.mm dia. x 3mm Tk 99.95% Pure
Chromium Oxide
Cr2O3 TRG 50.8mm dia. x 3mm Tk 99.99% Pure
Chromium Oxide
Cr2O3 TRG 50.8mm dia. x 3.18mm Tk 99.9% Pure
Chromium oxide
Chromium silicide CrSi2,
Available purities 99.9% & 99.95%
Chromium-Nickel Cr-Ni,
Available in various ratios wt% or at%, Purity 99.9% & 99.95%
Chromium-Aluminium-Yttrium Cr-Al-Y,
Available in various ratios wt% or at%, Purity 99.5% & 99.95%
Chromium-Ruthenium Cr-Ru,
Available in various ratios wt% or at%, Purity 99.9%
Chromium Aluminium-Graphite Cr-Al-C,
Available in various ratios wt% or at%, Purity 99.9%
Chromium-Magnesium Cr-Mg,
Available in various ratios wt% or at%, Purity 99.9%
Chromium-Silicon-Aluminium Cr-Si-Al,
Available in various ratios wt% or at%, Purity 99.9%
Chromium Aluminium carbide Cr2AlC,
Available purity 99.9%
Chromium-Vanadium Cr-V,
Available in various ratios wt% or at%, Purities 99.9% & 99.95%
Chromium-Silicon Cr-Si,
Available in various ratios wt% or at%, Purities 99.9% & 99.95%
Chromium-Manganese-Antimony Cr2MnSb,
Available purity 99.9%
Chromium-Titanium Cr-Ti,
Available in various ratios wt% or at%, Purities 99.9% & 99.95%
Chromium-Yttrium Cr-Y,
Available in various ratios wt% or at%, Purities 99.9% & 99.95%
Chromium oxide-Aluminium oxide-Yttrium oxide Cr2O3/Al2O3/Y2O3,
Purity 99.5%~99.9%
Chromium-Copper-Iron-Nickel Cr-Cu-Fe-Ni,
Available in various ratios wt% or at%, Purity 99.9%
Chromium Selenide CrSe2,
Purity 99.9%
Chromium-Germanium-Telluride CrGeTe3,
Available in various ratios wt% or at%, Purity 99.9%
Chromium oxide-Yttrium oxide Cr2O3-Y2O3,
Available in various ratios wt% or at%, Purity 99.95%
Cr TRG 76.2mm dia. x 6mm Tk 99.95% Pure
Chromium
Cr TRG 101.6mm dia. x 3mm Tk 99.95% Pure
Chromium
Cr TRG 101.6mm dia. x 6mm Tk 99.95% Pure
Chromium
Overview
Chromium (chemical symbol Cr) is a transition metal known for its remarkable hardness and corrosion resistance. It belongs to Group 6 of the periodic table and is commonly found in minerals such as chromite. Discovered in 1797 by French chemist Nicolas-Louis Vauquelin, chromium plays a crucial role in various industrial applications due to its distinctive physical and chemical properties.
Properties
Chromium has several key properties that make it valuable in many applications. It has an atomic number of 24 and an atomic mass of 51.996 u. Chromium is a hard, steel-gray metal with a density of 7.19 g/cm³. It has a melting point of 1,907 °C and a boiling point of 2,672 °C, making it highly resistant to high temperatures. Chromium is also known for its excellent corrosion resistance and ability to maintain its shiny appearance even after prolonged exposure to harsh conditions. These properties are attributed to a thin, protective oxide layer that forms on its surface.
Applications and Uses
Chromium is widely used in various industrial and technological applications. One of its most significant uses is in the production of stainless steel, where it is added to enhance corrosion resistance and improve the material's strength. Chromium is also used in the manufacture of various alloys, such as high-speed steel, which is known for its hardness and ability to retain sharp edges at high temperatures.
In the plating industry, chromium is employed to provide a durable and aesthetically pleasing finish to metal objects. Chromium plating, or chrome plating, is used to enhance the appearance and resistance to wear and corrosion of automotive parts, household fixtures, and other metal components. Additionally, chromium compounds are used as pigments in dyes and paints, contributing vibrant colours to products ranging from textiles to ceramics.
Chromium also finds applications in the aerospace industry, where it is used in the production of turbine blades and other high-performance components due to its high-temperature stability. In the chemical industry, chromium compounds serve as catalysts in various reactions, including those used in the production of chemicals and pharmaceuticals.
Safety and Handling
While chromium is essential for many applications, its compounds, particularly hexavalent chromium (Cr(VI)), are highly toxic and pose significant health risks. Proper safety measures, including the use of personal protective equipment and effective ventilation, are crucial when handling chromium and its compounds to prevent exposure and ensure safe use.
Summary
Chromium is a transition metal known for its hardness, high melting point, and excellent corrosion resistance. It is widely used in stainless steel production, chromium plating, and as a pigment in various products. Its properties make it valuable for industrial and technological applications, including aerospace and chemical processes. Testbourne offers high-quality chromium products, providing reliable materials for scientific research and industrial needs.