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Graphite Crucible Companies

IQS Directory provides useful search tools for finding leading graphite crucible manufacturers and suppliers. Find graphite crucible companies that can design, engineer, and manufacture graphite crucible to your specifications. Peruse our website to review and discover top graphite crucible manufacturers with roll over ads and complete product descriptions. Connect with the graphite crucible companies through our hassle-free and efficient request for quote form. You are provided company profiles, website links, locations, phone numbers, product videos, and product information. Read reviews and stay informed with product new articles. Whether you are looking for manufacturers of graphite crucible containers, commercial graphite crucibles, and industrial graphite crucibles of every type, IQS is the premier source for you.

  • Denver, PA

    Our graphite crucibles stand out from the competition. We manufacture tools from the highest quality materials using the best manufacturing techniques and latest technologies. We believe in offering nothing but the best to our customers. Find out how we can help you by visiting our website or giving us a call today! We would love to help you!

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  • Harvard, IL

    If you are in need of graphite crucibles that will withstand high temperatures then you have found the right company. We manufacture a variety of graphite items and we guarantee that our systems will not let you down. Our graphite crucibles are designed for high density and we utilize a broad inventory of graphite grades so we can customize a solution for your particular requirements. Contact us today to learn more information about our graphite crucibles.

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  • Bethel Park, PA

    The graphite products at Ameri-Source are manufactured to customer specifications, using the best Calcined Petroleum Coke. Our graphite blocks are manufactured to customer specifications and our prices are the most competitive in the industry. We also manufacture graphite electrodes which are best suitable for low and medium capacity arc and ladle furnaces. Call us today for more information!

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  • Maywood, IL

    Becker Brothers Graphite fabricates carbon graphite products for a range of applications. We combine our technical skills with our understanding of each customer’s needs to produce an item that will meet and exceed their expectations. Our graphite product line includes pillow blocks, vanes, thrust washers, graphite crucibles and much more. We offer a range of grades and machining options as well.

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  • Lorain, OH

    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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businessIndustry Information

Graphite Crucible

Graphite crucibles are heat resistant containers that store materials and samples for various high temperature applications. Crucibles are thick, cup-like containers that come in many different shapes and sizes and are widely used in applications from industrial to chemical, commercial to residential. They can be fabricated with or without a removable lid and occasionally with a spout, which eases the pouring process.

In terms of structure, graphite crucibles may be barrel, cylinder or conical shaped, wide-form with a shallow, low profile, or high-form, with high, tapered walls. Crucibles are made of metals like copper, platinum, quartz or porcelain, but graphite is a cost saving alternative to these more expensive materials. Graphite is a chemically inert, temperature resistant mineral that fares well in ovens and furnaces. It resists thermal shock, oxidation and abrasions well, and won’t melt, burn or chemically change in extreme conditions. It is able to maintain its structure and form even at temperatures as high as 5000°F and so can be used in furnaces and high heat processes. Graphite crucibles have many applications within the foundry, laboratory testing, jewelry making, plumbing fixtures, valves, sprinklers, and other heavy-duty products. They are further used in chemical analysis, to store materials and samples during fusion and mixing processes, in ash content determination, to melt precious metals, and in foundries to melt many different metals.

The graphite used for the fabrication of graphite crucibles or other graphite products may be regular or high purity. Even less pure graphite mixtures still usually contain a high percentage of graphite, which is often mixed with clay; however the crucible does undergo high purification before being used in a process. Crucibles of any size or material are measured in milliliters and they are always portable and handled with tongs and great care. Most crucibles, unless specifically designed, have a smooth surface and they are all dark grey or black in color. To eliminate the risk of cross-contamination and a difficult cleaning process, many graphite crucibles are one-time-use disposable products. Due to it being mixed with clay, the temperature limits of most graphite crucibles are lowered, as it the durability. After graphite reaches its maximum temperature, it tends to start slowly oxidizing and if left in a furnace too long, may erode and cause contamination. Graphite crucibles are not very porous, and won’t absorb much of the material being held. Many sizes are available, and they may be custom made to fit certain manufacturing requirements for a higher cost, or come in standardized sizes. The machined graphite is mixed with refractory clay, grog and other additives, and then formed into the crucible shape by extrusion or die casting, and heat treated in an oven where strengthening takes place.