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Graphite Plates

A reliable source for Machined Graphite information and leading Machined Graphite Companies & Suppliers.

Graphite is also a chemically inert substance and has an extreme temperature resistance. Because of these unique properties, graphite outperforms almost every other material, including steel and titanium, in plate applications that require very high temperatures. Read More…

Graphite Plates Graphite plates are typically smooth, flat and have uniform thickness. Manufactured through the process of extrusion, they are electrically and thermally conductive and therefore are used in many industrial applications.
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Leading Manufacturers

Denver, PA  |  717-336-7507

At Weaver Industries we specialize in manufacturing machined graphite parts and products. Our goal is to ensure that our customers get the right tools for their applications. We are leaders in the industry for our graphite machining processes which include recycling and reclaiming machined electrodes. Custom molded urethane and high quality carbon graphite are only a few of our other capabilities.

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Weaver Industries, Inc. $$$

Willoughby, OH  |  800-448-8887

Innovating and manufacturing the highest quality graphite products since 1979, Ohio Carbon Blank guarantees customer satisfaction. Our machined graphite blanks come in various sizes and square, rectangular and round shapes—available from .001” up to full block sizes. No matter what the size and style, all of our products adhere to ISO 9001:2008 quality standards. For a complete list of available graphite materials and our other capabilities, contact Ohio Carbon Blank today!

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Ohio Carbon Blank $$$

St. Marys, PA  |  814-781-7333

St. Marys Carbon Company is an integrated manufacturer of carbon materials. These materials are used in the manufacturing of automotive and industrial brushes, electrical contacts, current collector shoes, and a wide range of mechanical products. In addition, we can supply stock material if you desire to perform the final machining work.

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St. Marys Carbon Company $$$

Lorain, OH  |  800-420-5740

Since 1971, Semco Carbon has been a leading supplier of custom carbon and graphite machining. Our graphite products include graphite rods, graphite tubes and graphite fixtures. We serve a range of industries with quality machined graphite and handle small-run jobs machined from raw blocks.

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Semco Carbon $$$
placeholder image Weaver Industries, Inc. Ohio Carbon Blank St. Marys Carbon Company Semco Carbon

Graphite plates are commonly used for structural ribs, components of kilns and copper, zinc and aluminum extrusion machines, cable manufacturing, carbide, electrodes, plastic injection molding parts, lubricating and sealing plates, and the most widely used—bipolar fuel cell construction. They can also be used to dam molten metal in metal fabrication plants and provide a protective barrier in welding processes.

Graphite Machining Graphite Machining - Becker Brothers Graphite Corporation

The aerospace, paper, chemical, cement, electronic and electric industries also use graphite plates for many different application functions. Natural graphite is composed of layers of graphite which are not tightly bonded to each other and therefore can be separated easily. Some thinner flexible graphite plates are used as sealing material.

The graphite plates are custom made and also come in many different standard shapes and sizes, although plates are always uniformly flat, generally have 90º angled corners and are thinner than graphite sheets, which are very flexible and are able to be rolled up.

The extrusion process involves pure graphite, carbon graphite or a mixture of materials being heated until flexible and then forced through a hollow profile. Most plates are made of multiple uni-directional layers that have been sandwiched together with an epoxy. Because graphite tends to be a porous material, many plates are impregnated with wax, resin or high purity linseed oil to create a gas-tight seal and eliminate the problems that pores and impurities create.

Many different grades of graphite are used to make plates. IPG is made of fine particles, exhibits high strength and sharp detail. PL-850 is dense and oxidation resistant, meaning it fares will in extremely high temperatures. PL-800 is easy to machine and is also used in high temperature applications like furnaces and kilns.

Pure graphite is used in fuel cells and as graphite electrodes because it has lower density than other temperature resistant metal plates. However, it tends to be quite brittle and polymer binders are added to give the graphite more flexibility. The plates may be smooth, textured, have exterior layers made of high gloss woven carbon fabric, corrugated, engraved or have a patterned design. Like most graphite products, plates are inexpensive and simple to manufacture.

Graphite Plate Informational Video