Grades of graphite

We supply a wide range of applications with machined graphite products for aerospace, semiconductor, electronic, jewellery, diamond and bearings industries.  We have extensive stocks of a variety of rods and blocks in a variety of grained graphites.  Our stock sizes start at Ø3mm for graphite rods increasing up to Ø700mm, and blocks are available in sizes up to 915 x 375 x 3150mm. However, other sizes available upon request.

Prices for all items will soon be shown online, and purchases may also be made through our ecommerce section of this site.

Olmec’s expertise in machining graphite enables us to advise you on the most suitable grade for your application. Please Contact Us to allow us to help.

Specifications of grades are available within the technical data section of this website.

Fine Grained Graphites

Fine grained graphites are available as:

• Rods from Ø3mm – Ø450mm with other sizes are available upon request.
• Blocks from 260 x 330 x 510 with other sizes are available upon request. Our largest block in fine grain graphite is 300 x 200 x 500 although larger sizes are available upon request.

Fine grained graphite rods are stocked in a variety of different specifications to enable us to offer grades for the vast majority of applications where fine grained graphites are required.

We also supply fine grained graphite to customers to machine using their own machining facilities. However, the conductive and invasive dust that is generated during graphite machining often leads to customers preferring that they had requested Olmec to machine the graphite.   Our graphite machining equipment has been designed to accommodate the local “at tool” dust extraction, which is necessary to help prevent machinery and electrical equipment breakdown.
 
Below are a small number of uses along with some of the applications where these components are found:

Crucibles: Glass, drilling bits, dental work, semiconductor, precious metals industries.
Continuous casting dies: Non ferrous metals
Work-holding jigs: Quartz glass production
Spark erosion tools: EDM in the automotive industry 
Rocket nozzles: Space industry
Seals: Chemical industry, petrochemical, power generation.
Piston rings: Sterling engines
Bearings: Paper and plasterboard production.
Carbon brushes: AC and DC Motors.
Casting rings: Aluminium production.
Heating elements: Vacuum and inert atmosphere furnaces

Medium Grained Graphites

Medium grained graphites are available as:

• Rods from  Ø3mm –  Ø700mm with other sizes are available upon request.
• Blocks up to 915 x 375 x 3150mm with other sizes are available upon request.

We stock around ten different grades of medium grained graphites with our most popular grade being MCCA. We also supply medium grained graphite to customers to machine using their own machining facilities. However, the conductive and invasive dust that is generated during graphite machining often leads to customers preferring that they had requested Olmec machine the graphite.   Our graphite machining equipment has been designed to accommodate the local “at tool” dust extraction, which is necessary to help prevent machinery and electrical equipment breakdown.

Listed below are a small number of uses along with some of the applications where medium grained graphite components are used:

Furnace parts: Carbide production, ceramics Industry, Silicon Carbide production and Carbon Fibre production.
Crucibles: Foundries and the chemical industry.
Drilling Bit Moulds: Mining and petrochemical industries.
Heating elements: Quartz glass production and powder metallurgy.
Piston Rings: Sterling Engines
Purification Systems: Aluminium Production
Extrusion guides: Extruded aluminium production
Moulds: Precious metal recovery
Heating Elements: Vacuum and inert atmosphere furnaces
Silicon Metal Slicing Beams: Semiconductor industry
Self lubricating bearings: Bearings
Busting Discs: Safety valves
Hearths: Vacuum metal coatings
Trays & Work-holding jigs: Jewellery industry

Coarse Grained Graphites

Coarse grained graphite rods are primarily used as graphite electrodes for electric arc and  ladle furnaces in the steel industry. This area of supply is not normally an area in which Olmec offer. We tend not to deal with coarse grained graphite’s because we specialise in other areas.