{"id":4844,"date":"2025-04-18T12:29:46","date_gmt":"2025-04-18T03:29:46","guid":{"rendered":"https:\/\/sec-carbon.com\/?page_id=4844"},"modified":"2026-04-15T17:44:58","modified_gmt":"2026-04-15T08:44:58","slug":"thermal-furnace","status":"publish","type":"page","link":"https:\/\/sec-carbon.com\/en\/product\/graphite-specialties\/thermal-furnace\/","title":{"rendered":"Heat Treatment Furnace"},"content":{"rendered":"\n
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home<\/a><\/span><\/span><\/p><\/div>\n\n

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Industry-Specific Use Cases<\/p>\n

Case 03<\/p>\n <\/div>\n <\/div>\n

Heat Treatment Furnace<\/h1>\n
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for<\/div>\n
\n\n Electromagnetic steel sheet <\/span>\n\n Vacuum furnace<\/span>\n\n Ceramic firing, sintered alloy<\/span>\n\n Aluminium vapor deposition<\/span>\n\n Silicon for semiconductors<\/span>\n <\/div>\n <\/div>\n <\/div>\n
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How It Is Used<\/h2>\n <\/hgroup>\n

Taking advantage of its heat resistance, various heat treatment furnace components are made from graphite. These include heaters, carbon sleeves, crucibles, and setters.<\/p>\n

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Application Examples<\/h2>\n <\/hgroup>\n
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Heaters<\/figcaption>\n <\/figure>\n\n
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Rollers<\/figcaption>\n <\/figure>\n\n
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Crucibles<\/figcaption>\n <\/figure>\n <\/div>\n

\n Graphite is used as a heater by passing electric current through it to generate self-heating.
\n Graphite has high efficiency in converting electricity to thermal energy, which can reduce energy costs.
\n Graphite has high heat resistance and a long lifespan, and it can be used up to 3000\u00b0C in an inert atmosphere. Additionally, its self-lubricating property prevents damage to counterpart materials, making it suitable for use as rollers to transport steel plates in high-temperature furnaces. Furthermore, graphite is utilized in a wide range of components, including crucibles, trays, and many other applications.\n <\/p>\n <\/div>\n<\/section>\n\n\n\n

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The Advantages of SEC Carbon Products for Heat Treatment Furnace <\/h2>\n <\/hgroup>\n\n
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01<\/div>\n

Excellent Heat Resistance<\/h3>\n <\/div>\n

Our Graphite can be used up to approximately 3,000\u2103 in inert atmospheres and up to about 400\u2103 in oxidizing atmospheres. One of special characteristics of graphite is that mechanical strength increases as the temperature gets higher up until 2,500\u2103 in inert atmospheres.<\/p>\n\n

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02<\/div>\n

Low Coefficient of Thermal Expansion<\/h3>\n <\/div>\n

The coefficient of thermal expansion is less than half that of metals such as iron and copper.<\/p>\n\n

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03<\/div>\n

Excellent Thermal Shock Resistance<\/h3>\n <\/div>\n

Our Graphite is extremely resistant to the appearance of cracks and fractures even when exposed to sudden heating or cooling.<\/p>\n\n

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04<\/div>\n

Self-lubricating and Excellent Sliding Properties<\/h3>\n <\/div>\n

Our Graphite has self-lubricating properties and does not damage the counterpart material.<\/p>\n\n

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05<\/div>\n

Lightweight and Easy to machining<\/h3>\n <\/div>\n

The density of carbon materials is lower than that of aluminium and less than one-third that of iron or copper. Additionally, it is easy to machine and allows for complex and precise machining.<\/p>\n\n

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(Technical) Specification<\/h2>\n <\/hgroup>\n
\n \n \n \n \n \n \n
Grade<\/th>\n Size
\uff08mm\uff09<\/th>\n 		Coefficient of
thermal expansion
\uff08\u00d710\u207b\u2076\/K\uff09<\/th>\n 		Thermal
conductivity
(W\/mk)<\/th>\n 		Ash content
\uff08%\uff09<\/th>\n 		Features<\/th>\n <\/tr>\n <\/thead>\n
Rectangular<\/th>\n PSG-332<\/td>\n 670 \u00d7 450 \u00d7 3170<\/td>\n 1.0<\/td>\n 240<\/td>\n 0.03<\/td>\n \n

This is a grade characterized by high density, low thermal expansion coefficient, low ash content, and high thermal conductivity. It is also a grade with excellent oxidation resistance and thermal shock resistance.<\/p>\n <\/td>\n <\/tr>\n

PSG-12<\/td>\n 670 \u00d7 450 \u00d7 3000<\/td>\n 4.5<\/td>\n 170<\/td>\n 0.15<\/td>\n \n

This is a grade with excellent high strength and wear resistance. It offers excellent cost performance and is recommended for environments with severe physical wear.<\/p>\n <\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n<\/section>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Industry-Specific Use Cases Case 03 Heat Treatment Furnace for Electromagnetic steel sheet Vacuum furnace Ceramic firing, sintered alloy Aluminium vapor deposition Silicon for semiconductors How It Is Used Taking advantage of its heat resistance, various heat treatment furnace components are made from graphite. These include heaters, carbon sleeves, crucibles, and setters. Application Examples Heaters Rollers Crucibles Graphite is used as a heater by passing electric current through it to generate self-heating. Graphite has high efficiency in converting electricity to thermal energy, which can reduce energy costs. Graphite has high heat resistance and a long lifespan, and it can be used up to 3000\u00b0C in an inert atmosphere. Additionally, its self-lubricating […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":4779,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"page-temp-product.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-4844","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/pages\/4844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/comments?post=4844"}],"version-history":[{"count":8,"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/pages\/4844\/revisions"}],"predecessor-version":[{"id":4913,"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/pages\/4844\/revisions\/4913"}],"up":[{"embeddable":true,"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/pages\/4779"}],"wp:attachment":[{"href":"https:\/\/sec-carbon.com\/en\/wp-json\/wp\/v2\/media?parent=4844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}