{"id":5854,"date":"2024-10-07T11:55:40","date_gmt":"2024-10-07T11:55:40","guid":{"rendered":"https:\/\/jinsuncarbon.com\/?p=5854"},"modified":"2024-12-29T04:37:48","modified_gmt":"2024-12-29T04:37:48","slug":"silicon-carbide-vs-graphite-crucible","status":"publish","type":"post","link":"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/","title":{"rendered":"Silicon Carbide Vs Graphite Crucible  &#8211; What&#8217;s The Difference"},"content":{"rendered":"<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span><strong><b>Introduction <\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Properties including density and heat resistance are compared between <a href=\"https:\/\/jinsuncarbon.com\/nl\/graphite-crucible-vs-silicon-carbide-crucible\/\"><strong><b>\u00a0Silicon Carbide vs Graphite Crucible<\/b><\/strong><\/a>. The density of graphite is about 1.8\u20132.1 g\/cm\u00b3 and won\u2019t be destroyed at temperatures of up to 3000 \u00b0C. Therefore, SiC crucibles have a density close to 3.1 g\/cm\u00b3, and stand well at around 1600\u00b0C. Both serve in hot furnaces. Find out what each of them serves in metal melting.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle tabel met inhoud\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Introduction\" >Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#What_Is_Graphite_Crucible\" >What Is Graphite Crucible?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#What_Is_Silicon_Carbide_Crucible\" >What Is Silicon Carbide Crucible?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Graphite_Crucible_vs_Silicon_Carbide_Crucible_%E2%80%93_Key_Differences\" >Graphite Crucible vs Silicon Carbide Crucible &#8211; Key Differences!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Melting_Point\" >\u00b7\u00a0Melting Point<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Chemical_Resistance\" >\u00b7\u00a0Chemical Resistance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Material_Porosity\" >\u00b7\u00a0Material Porosity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Electrical_Conductivity\" >\u00b7\u00a0Electrical Conductivity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Thermal_Stability\" >\u00b7\u00a0Thermal Stability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Oxidation_Resistance\" >\u00b7\u00a0Oxidation Resistance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Heat_Absorption\" >\u00b7\u00a0Heat Absorption<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Thermal_Conductivity_and_Heat_Resistance_of_Graphite_Crucible_vs_Silicon_Carbide_Crucible\" >Thermal Conductivity and Heat Resistance of Graphite Crucible vs Silicon Carbide Crucible!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Heat_Transfer_Efficiency\" >\u00b7\u00a0Heat Transfer Efficiency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Maximum_Operating_Temperature\" >\u00b7\u00a0Maximum Operating Temperature<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Heat_Retention\" >\u00b7\u00a0Heat Retention<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Thermal_Degradation\" >\u00b7\u00a0Thermal Degradation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Temperature_Range\" >\u00b7\u00a0Temperature Range<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Durability_and_Mechanical_Strength_in_Graphite_and_Silicon_Carbide_Crucibles\" >Durability and Mechanical Strength in Graphite and Silicon Carbide Crucibles!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Fracture_Toughness\" >\u00b7\u00a0Fracture Toughness<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Compressive_Strength\" >\u00b7\u00a0Compressive Strength<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Wear_Resistance\" >\u00b7\u00a0Wear Resistance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Crack_Propagation\" >\u00b7\u00a0Crack Propagation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Impact_Resistance\" >\u00b7\u00a0Impact Resistance<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Material_Composition_and_Structure\" >Material Composition and Structure!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Carbon_Content\" >\u00b7\u00a0Carbon Content<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Grain_Alignment\" >\u00b7\u00a0Grain Alignment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Crystal_Lattice\" >\u00b7\u00a0Crystal Lattice<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Molecular_Bonds\" >\u00b7\u00a0Molecular Bonds<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Material_Density\" >\u00b7\u00a0Material Density<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Differences_in_Performance_in_Specific_Industrial_Applications\" >Differences in Performance in Specific Industrial Applications!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Steel_Foundries\" >\u00b7\u00a0Steel Foundries<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Jewelry_Casting\" >\u00b7\u00a0Jewelry Casting<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Aluminum_Smelting\" >\u00b7\u00a0Aluminum Smelting<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Ceramic_Manufacturing\" >\u00b7\u00a0Ceramic Manufacturing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Chemical_Processing\" >\u00b7\u00a0Chemical Processing<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Which_Crucible_is_Right_for_Your_Process\" >Which Crucible is Right for Your Process?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Operating_Temperature\" >\u00b7\u00a0Operating Temperature<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Material_Reactivity\" >\u00b7\u00a0Material Reactivity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Process_Duration\" >\u00b7\u00a0Process Duration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Metal_Compatibility\" >\u00b7\u00a0Metal Compatibility<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#%C2%B7_Budget_Constraints\" >\u00b7\u00a0Budget Constraints<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/jinsuncarbon.com\/nl\/silicon-carbide-vs-graphite-crucible\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Graphite_Crucible\"><\/span><strong><b>What Is Graphite Crucible? <\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/jinsuncarbon.com\/nl\/graphite-crucible-price\/\">Graphite crucibles<\/a>\u00a0reach 3000\u00b0C. That is hot! It melts Al and Cu. It is light, due to a density of 1.8 g\/cm\u00b3. Its strong because it uses <a href=\"https:\/\/en.wikipedia.org\/wiki\/Silicon_dioxide\">SiO\u2082<\/a>\u00a0coating. This material has a heat flow of 200 W\/m\u00b7 K, excellent melting capability.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-5856 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles.png\" alt=\"Graphite crucibles\" width=\"538\" height=\"401\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles.png 1067w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-600x447.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-300x224.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-1024x763.png 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-768x572.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-16x12.png 16w\" sizes=\"(max-width: 538px) 100vw, 538px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Silicon_Carbide_Crucible\"><\/span><strong><b>What Is Silicon Carbide Crucible?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p>Silicon carbide crucibles reach 1600\u00b0C. But they are harder, rated 9 on the Mohs scale. The middle comparison, &#8220;Graphite Crucible vs Silicon Carbide Crucible,&#8221; shows this crucible is heavy at 3.1 g\/cm\u00b3. It works in Fe and Pb foundries. This has 300 MPa strength.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-5857 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles.png\" alt=\"Silicon carbide crucibles\" width=\"530\" height=\"350\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles.png 974w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-600x397.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-300x198.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-768x508.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-18x12.png 18w\" sizes=\"(max-width: 530px) 100vw, 530px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Graphite_Crucible_vs_Silicon_Carbide_Crucible_%E2%80%93_Key_Differences\"><\/span><strong><b>Graphite Crucible vs Silicon Carbide Crucible &#8211; Key Differences!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Melting_Point\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Melting Point<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite crucibles melt at 3,650\u00b0C, but SiC stops at 2,700\u00b0C. This requires change in the furnace. Graphite Crucible vs Silicon Carbide Crucible shows SiC heats quicker. Both melt metals differently.<\/p>\n<p>High heat tasks but at different temperatures, they can run appropriately for different furnaces and alloys.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Chemical_Resistance\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Chemical Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Strong acids are easily handled by SiC. Fluorine doesn&#8217;t hurt it. Here, Graphite doesn\u2019t work that well. The Graphite Crucible vs Silicon Carbide Crucible comparison shows SiC resists chemicals better.<\/p>\n<p>When molten salt is involved, this is useful. They can all fitting different metals or chemicals, depending what they do in furnaces.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Material_Porosity\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Material Porosity<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The gases pass more easily, as the graphite has 10 percent more porosity. Gases can&#8217;t get in with SiC when melting metal. This helps metals stay pure. The Graphite Crucible vs Silicon Carbide Crucible comparison shows SiC&#8217;s porosity makes it better for purity. If graphite is used in such settings, then gases can weaken the process.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Electrical_Conductivity\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Electrical Conductivity<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SiC is electrically resistant and graphite is electrically conductive. SiC has 1.0e+06 \u03a9\u00b7cm, graphite 10\u2076 \u03a9\u00b7cm, and 105 S\/m. In <a href=\"https:\/\/jinsuncarbon.com\/nl\/graphite-electrode-for-electric-arc-furnace\/\">electric furnaces<\/a>\u00a0this is an issue. Electric arc melting depends on conductivity.<\/p>\n<p>Electrical heating is better with graphite. It&#8217;s unsuitable as electric melting, but more than suitable for insulation. Jinsun Carbon graphite electrodes conduct electricity better for efficient arc furnace operation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Thermal_Stability\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Thermal Stability<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Reaching fast heat changes up to 1,500\u00b0C, SiC is able to absorb and release extreme change in heat compared to conventional materials. When temperatures change it, graphite can crack more easily.<\/p>\n<p>For this reason, SiC can operate stably under fast changes in heat. However, each material is suitable for other uses depending on temperatures in the furnace, with SiC providing best performance when there is quick change in furnace temperatures.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Oxidation_Resistance\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Oxidation Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite oxidizes at 450\u00b0C, but SiC holds stronger, taking up to 1,000\u00b0C. SiC remains strong in oxygen. It has an advantage since it is in oxygen heavy environments. Graphite has to be protected from itself, otherwise it wears down faster. In oxidation resistance SiC wins again, remaining intact during hot, oxygen full processes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Heat_Absorption\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Heat Absorption<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SiC absorbs less heat (at 1.23 J\/g\u00b7K) than graphite (at 1.75 J\/g\u00b7K), but it releases it faster. These changes melting rates. For example, furnace energy is affected by crucible heat absorption in the melting metals.<\/p>\n<p>The way each material deals with heat is different. It is beneficial to know what crucible to use for a certain metal job. For high performance metal smelting, our <a href=\"https:\/\/jinsuncarbon.com\/nl\/graphite-electrodes-raw-material\/\">graphite electrodes<\/a>\u00a0are exported to more than 30 countries.<\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong><b>Parameter<\/b><\/strong><\/td>\n<td><strong><b>Graphite Crucible<\/b><\/strong><\/td>\n<td><strong><b>Silicon Carbide Crucible<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong><b>Melting Point<\/b><\/strong><\/td>\n<td>3,600\u00b0C<\/td>\n<td>2,800\u00b0C<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Chemical Resistance<\/b><\/strong><\/td>\n<td>Moderate (Acids\/Alkalis)<\/td>\n<td>High (Acids\/Alkalis)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Material Porosity<\/b><\/strong><\/td>\n<td>Low<\/td>\n<td>Lower than graphite<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Electrical Conductivity<\/b><\/strong><\/td>\n<td>High (Conductive)<\/td>\n<td>Moderate (Semi-conductive)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Thermal Stability<\/b><\/strong><\/td>\n<td>Excellent (Up to 2,500\u00b0C)<\/td>\n<td>Very high (Up to 2,200\u00b0C)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Oxidation Resistance<\/b><\/strong><\/td>\n<td>Low<\/td>\n<td>Higher (Better against air)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Heat Absorption<\/b><\/strong><\/td>\n<td>High<\/td>\n<td>Moderate<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><em><b><i>Table on Graphite Crucible vs Silicon Carbide Crucible &#8211; Key Differences!<\/i><\/b><\/em><\/strong><\/p>\n<p><strong><em><b><i>\u00a0<\/i><\/b><\/em><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Thermal_Conductivity_and_Heat_Resistance_of_Graphite_Crucible_vs_Silicon_Carbide_Crucible\"><\/span><strong><b>Thermal Conductivity and Heat Resistance of Graphite Crucible vs Silicon Carbide Crucible!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"wp-image-5859 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting.png\" alt=\"Graphite crucibles for smelting\" width=\"591\" height=\"301\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting.png 1589w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-600x305.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-300x153.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-1024x521.png 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-768x391.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-1536x781.png 1536w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-18x9.png 18w\" sizes=\"(max-width: 591px) 100vw, 591px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Heat_Transfer_Efficiency\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Heat Transfer Efficiency<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite moves heat faster at 700 W\/m\u00b7K. SiC transfers heat at 360 W\/m\u00b7K <a href=\"https:\/\/jinsuncarbon.com\/nl\/differences-between-graphite-electrodes-and-carbon-electrodes\/\">\u00a0Silicon Carbide vs Graphite Crucible<\/a>\u00a0shows that SiC melts iron (Fe) evenly. For faster heat changes, graphite is better. The different suits work on different kinds of metal like aluminum (Al).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Maximum_Operating_Temperature\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Maximum Operating Temperature<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SiC can reach 1600\u00b0C where graphite hits 3000\u00b0C. As a result, Graphite is perfect for very hot tasks. Eventually they melt these things like steel. SiC handles common jobs. The difference in temperatures is key in the Graphite Crucible vs Silicon Carbide Crucible debate.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Heat_Retention\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Heat Retention<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite retains heat longer. SiC has 0.75 J\/g\u00b7K while SiC has 0.7 J\/g\u00b7K. That means SiC cools faster. How they behave towards metals like copper (Cu) is different. If heating takes longer, then graphite is an excellent help, so it is used in a large number of processes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Thermal_Degradation\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Thermal Degradation<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite resists high heat. At 1600\u00b0C SiC begins to breakdown. It resists up to 2000\u00b0C. That difference makes Graphite last longer. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Sic\" target=\"_blank\" rel=\"noopener\">SiC<\/a> cracks in intense heat. And their lifespan depends on the heat.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Temperature_Range\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Temperature Range<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite is stable from room temperature to 3000\u00b0C and working temperatures from -50\u00b0C to 2500\u00b0C. The SiC temperature range is -20\u00b0C to 1600\u00b0C. They do different jobs.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Durability_and_Mechanical_Strength_in_Graphite_and_Silicon_Carbide_Crucibles\"><\/span><strong><b>Durability and Mechanical Strength in Graphite and Silicon Carbide Crucibles!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5858 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting.png\" alt=\"Silicon carbide crucibles for smelting\" width=\"578\" height=\"422\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting.png 1090w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-600x438.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-300x219.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-1024x747.png 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-768x560.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-16x12.png 16w\" sizes=\"(max-width: 578px) 100vw, 578px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Fracture_Toughness\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Fracture Toughness<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/jinsuncarbon.com\/nl\/product\/graphite-crucible\/\">Graphite crucible<\/a>\u00a0is strong at 4 <a href=\"#:~:text=MPa-Sqrt(meter)%20(,length%2C%20and%20T%20is%20time.\">MPa\u221am<\/a>. It is tougher at 9 MPa\u221am with Silicon carbide (SiC) crucible. It can withstand hotter melts up to 1800\u00b0C. Thicker walls stop the cracks. Also, this is good if pressure is 3000 psi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Compressive_Strength\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Compressive Strength<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Heavy loads can be carried. <a href=\"https:\/\/jinsuncarbon.com\/nl\/the-uses-of-graphite\/\">Graphite<\/a>\u00a0crushes at 40 MPa. SiC is 300 MPa. Molten metal at over 1600\u00b0C are protected by this. SiC crucibles are thicker. They last through melts. With 1000 kg\/cm\u00b2 pressure, it works.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Wear_Resistance\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Wear Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Wear resistance of crucibles is up to 1650\u00b0C. Silicon carbide lasts longer. This makes it stronger than graphite crucibles. In 200 melts, SiC resists friction. Graphite Crucible vs Silicon Carbide Crucible shows SiC wears less. It achieves surface hardness of 25 GPa, high compared to graphite at 15 GPa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Crack_Propagation\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Crack Propagation<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SiC crucibles are also slower growing cracks. Its thermal expansion has a value of 4.6 \u03bcm\/m\u00b0C. At 7.4 \u03bcm\/m\u00b0C, graphite expands. Under heat, the crucible is strong. Graphite Crucible vs Silicon Carbide Crucible tests show fewer cracks. This is good for molten metal safety, especially at 1600\u00b0C.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Impact_Resistance\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Impact Resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Crucibles resist impact well. Graphite absorbs 80 J energy. It absorbs 200 J. SiC crucibles are tougher due to that. When dropped, they won\u2019t break easily. What\u2019s more, they stay strong when temps change. At 2.1 g\/cm\u00b3 weight, SiC is most effective.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Material_Composition_and_Structure\"><\/span><strong><b>Material Composition and Structure!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Carbon_Content\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Carbon Content<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite has 95% carbon. Its 70% is Silicon carbide (SiC). Their atoms stick tightly. Graphite has lighter C-C bonds. SiC adds silicon atoms. That makes it strong at 2500\u00b0C. At +3000\u00b0C, graphite melts better. Both works differently! Graphite Crucible vs Silicon Carbide Crucible shows how carbon levels change metal heating speed.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Grain_Alignment\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Grain Alignment<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The SiC grains measure 12 microns. The graphite grains are bigger at 16 microns. This makes surfaces smoother because smaller grains. This helps metal not stick! In strong terms, fracture toughness for SiC is 50 MPa in contrast to graphite\u2019s 30 MPa. The cracks are controlled by grain direction. That helps keep the crucibles working hard!<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Crystal_Lattice\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Crystal Lattice<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lattice spacing of 3.35 \u00c5 of graphite. Its 7.48 \u00c5 wide and thus tougher. At 2000\u00b0C SiC holds shape better. Silicon atoms in its bonds make it that way. Heat flows differently on a lattice structure. The design of Graphite Crucible vs Silicon Carbide Crucible shows this difference clearly.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Molecular_Bonds\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Molecular Bonds<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>This means SiC bonds have 452 kJ\/mol energy. Graphite has 348 kJ\/mol of carbon bond. However, the Si\u2013C bonds are quite heat-crack resistant! According to delegates, graphite is good at bearing sudden heat changes. They are sturdy for the way that they react a but flexible. That\u2019s both types are good for different heating jobs at high temperatures!<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Material_Density\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Material Density<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>However, SiC is also denser (3.1 g\/cm\u00b3). Graphite is only 1.9 g\/cm\u00b3, so it\u2019s obviously not very dense. That slow heat and handle more pressure. They are different than how they react to weight. Temperature at 2500\u00b0C can be handled by the dense SiC. Graphite is lighter so it heats faster. Both materials work very hard to melt metal!<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Differences_in_Performance_in_Specific_Industrial_Applications\"><\/span><strong><b>Differences in Performance in Specific Industrial Applications!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Steel_Foundries\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Steel Foundries<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hot steel melts at 1,500\u00b0C. The SiC crucibles provide resistance to shocks caused by heat change. But they hold heat fast, 130 W\/m\u00b7K. Both handle 15 tons of steel each day. It can survive 3,000 heating cycles. 200 kW power furnaces work better because of the crucible.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Jewelry_Casting\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Jewelry Casting<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gold melts at 1,064\u00b0C. Casting in SiC crucibles lasts 200 cycles. Contamination on less than 0.01% is prevented by graphite, and gold mixing has not affected the absorption of gold. 2 kw machines heat fast.<\/p>\n<p>Graphite Crucible vs Silicon Carbide Crucible shows better performance in vacuum casting at 2 bar pressure. They make nice shiny rings too both.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Aluminum_Smelting\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Aluminum Smelting<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Aluminum melts at 660\u00b0C. <a href=\"https:\/\/jinsuncarbon.com\/nl\/what-is-the-application-of-graphite-electrodes\/\">Silicon Carbide vs Graphite Crucible<\/a> helps speed the heating, up to 2\u00b0C\/min. 1,200 cycles show the SiC type is more resistant to cracks. It is used in furnaces of 5 kW. The 10% more production melts aluminum a bit faster too. Crucibles hold 50 kg.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Ceramic_Manufacturing\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Ceramic Manufacturing<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To make ceramics, they reach 1,400\u00b0C. Fast heating measured to 3\u00b0C\/s is handled by SiC crucibles. It keeps it clean, there is no metal contamination because the graphite type. They each work in kilns up to 50 liters. It survives 800 cycles at 1,200\u00b0C. That aids in making smooth ceramic.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Chemical_Processing\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Chemical Processing<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Reactors go up to 1,200\u00b0C. Graphite crucibles\u00a0resist acids, lasting longer. SiC can also withstand high pressure \u2014 up to 2,500 PSI. This makes reactions faster. In 100-liter reactors, it heats up 90 W\/m\u00b7K thermal flow. In 100 kW reactors, they are pretty solid at handling heat, too.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Which_Crucible_is_Right_for_Your_Process\"><\/span><strong><b>Which Crucible is Right for Your Process?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Operating_Temperature\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Operating Temperature<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Up to 3,000\u00b0C it can get hot, graphite. SiC itself remains at a cool 1,600\u00b0C. This affects heat flow. By managing temperature differently. SiC has thermal conductivity of 120 W\/m\u00b7K, which quick cooling or heating helps. Your process\u2019s speed depends upon choosing right. That\u2019s how \u201cGraphite Crucible vs Silicon Carbide Crucible\u201d performs under heat. Each suits different needs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Material_Reactivity\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Material Reactivity<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite reacts above 450\u00b0C. SiC stays safe till 1,600\u00b0C. Less reactions happen inside. The extraction rate of SiC is 0.1 \u00b5m\/year. It keeps things clean. It prevents troubles of the furnace. Reactivity changes how &#8220;Graphite Crucible vs Silicon Carbide Crucible&#8221; behave with gases or chemicals. Keeping things pure means picking wisely.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Process_Duration\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Process Duration<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite lasts 1,200 cycles. SiC can last 2,500 cycles. For SiC, it is a 0.5 mm\/year wear rate. They stay strong for longer. Your process time is affected by each cycle. SiC is 9 on the Mohs scale for hardness. Better durability means longer process needs better durability. This makes your process smooth and economical.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Metal_Compatibility\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Metal Compatibility<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Graphite melts steel. SiC melts copper, brass and aluminum. The porosity of SiC is 8%. Different metals work with them. Melting cleanly is about compatibility. It keeps metals pure. SiC\u2019s thermal expansion is 4.3 \u00b5m\/m\u00b0C. Do not contaminate with metal.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Budget_Constraints\"><\/span><b>\u00b7\u00a0<\/b><strong><b>Budget Constraints<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SiC costs $100, although <a href=\"https:\/\/jinsuncarbon.com\/nl\/how-to-make-a-graphite-crucible\/\">graphite<\/a>\u00a0is only $50. This impacts your money plan. They wear differently. The SiC lasts longer and in the end, it saves your money. The price of each crucible, however, dictates how it works. Save money paying for replacements. Pick wisely. The more you pay for something and the longer it takes to arrive, the more you will spend.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong><b>Conclusion<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong><b>Graphite Crucible vs Silicon Carbide Crucible<\/b><\/strong>\u00a0compares heat, strength, and more. 1,000\u00b0C oxidation resists the SiC, but the graphite can handle only 450\u00b0C. Graphite heats fast with 700 W\/m\u00b7K thermal flow. Check them out at <a href=\"https:\/\/jinsuncarbon.com\/nl\/\">JINSUNCARBON<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Properties including density and heat resistance are compared between \u00a0Silicon Carbide vs Graphite Crucible. The density of graphite is about 1.8\u20132.1 g\/cm\u00b3 and won\u2019t be destroyed at temperatures of up to 3000 \u00b0C. Therefore, SiC crucibles have a density close to 3.1 g\/cm\u00b3, and stand well at around 1600\u00b0C. Both serve in hot furnaces. [&hellip;]<\/p>","protected":false},"author":3,"featured_media":5856,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-carbon-graphite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.2.1 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Silicon Carbide Vs Graphite Crucible<\/title>\n<meta name=\"description\" content=\"Compare Silicon Carbide Vs Graphite Crucible\u00a0for melting metals. 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