[{"data":1,"prerenderedAt":185},["ShallowReactive",2],{"blog-en-\u002Fblog\u002Fcarbon-graphite-felts":3,"blog-related-\u002Fblog\u002Fcarbon-graphite-felts":166},{"id":4,"title":5,"alternateArticle":6,"authors":7,"body":13,"category":152,"contentOrigin":153,"date":154,"description":155,"extension":156,"image":157,"lastUpdated":158,"meta":159,"navigation":160,"ogImage":161,"originalArticle":162,"path":6,"seo":163,"stem":164,"tags":161,"__hash__":165},"blog_en\u002Fblog\u002Fcarbon-graphite-felts.md","Carbon felts: indispensable element for thermal insulation","\u002Fblog\u002Fcarbon-graphite-felts",[8],{"name":9,"position":10,"avatarUrl":11,"link":12},"Arturo Romero","CIO","https:\u002F\u002Fgithub.com\u002Farturork.png","https:\u002F\u002Flinkedin.com\u002Fin\u002Farturork",{"type":14,"value":15,"toc":142},"minimark",[16,20,23,28,31,34,38,41,51,54,71,75,78,96,100,103,107,110,127,131],[17,18,19],"p",{},"Carbon and graphite felts has several properties such as thermal stability and\nthermal reflectivity. Because of these properties, they are commonly used as\ninsulation in industrial furnaces, due to the high operating temperatures.",[17,21,22],{},"For example, in the heat treatment industry, they are used as insulation for\nwalls and doors in heat treatment chambers. For this reason, we have taken on\nthe task of letting you know what they are, their usefulness, types and\nfunctions of the rbon felts",[24,25,27],"h2",{"id":26},"what-are-carbon-felts","What are carbon felts?",[17,29,30],{},"They are carbon structures or fibers, or carbonized or graphitized material,\nwhich are used as a means of insulation in induction or vacuum resistance\nfurnaces.",[17,32,33],{},"According to the type of heat treatment, the process is carried out under vacuum\nor in a controlled atmosphere with specific gases at temperatures ranging from\n350ºC to 2000ºC.",[24,35,37],{"id":36},"types-of-felts","Types of felts",[17,39,40],{},"There are different types of raw materials for the production of felts and\ncarbon fibers. One of the most common are felts made from rayon or\npolyacrylnitril (PAN) fibers. Through a process of carbonization and\ngraphitization, the organic material shrinks and its properties change. In this\ncase we describe two types of felt:",[42,43,44,48],"ul",{},[45,46,47],"li",{},"rbon: Ts is an economical version of graphite felt, which is used at low\ntemperatures where chemical purity is of less importance. The fibers are\nsubjected to a stabilization and carbonization process. They are used in\nfurnaces with temperatures up to 1200ºC.",[45,49,50],{},"aphite: Ihas the highest resistance to oxidation, because in addition to\ncarbonization, they are subjected to even higher temperatures and for a long\ntime in a graphitization process. They withstand temperatures higher than\n2000ºC.",[17,52,53],{},"rbon and graphite felts oer greaadvantages, for ample:",[42,55,56,59,62,65,68],{},[45,57,58],{},"They are extremely resistant to temperature and oxidation.",[45,60,61],{},"They have a low thermal conductivity coefficient.",[45,63,64],{},"Easy installation.",[45,66,67],{},"Dimensional uniformity",[45,69,70],{},"Low specific heat (they heat up or cool down quickly).",[24,72,74],{"id":73},"industrial-felts","Industrial felts",[17,76,77],{},"Felts provide workability, mechanical\u002Fchemical stability and best of all low\ncost, and can be used as thermal insulation or for the manufacture of composites\nor carbon-carbon (C\u002FC) composites and sandwich structures. Some derivative\nproducts include: mechanical seals, bearings and rotary joints, among others.",[17,79,80,81,86,87,91,92,95],{},"In ",[82,83,85],"a",{"href":84},"\u002Fproducts","ESGRAF",", we\ncommercialize dustrial graphite and carbon felt, e. carbonized\u002F graphitized\nfelts, for thermal insulation in high temperature furnaces. Request information\n",[82,88,90],{"href":89},"\u002Fcontact","here",", or visit the site to discover\nother\n",[82,93,94],{"href":84},"applications"," of\ngraphite in industry.",[24,97,99],{"id":98},"limitations-to-consider","Limitations to consider",[17,101,102],{},"Performance depends on graphite grade, grain orientation, temperature, load, pressure, speed, and operating environment. Material selection should be confirmed for your actual process conditions.",[24,104,106],{"id":105},"information-needed-for-a-quote","Information needed for a quote",[17,108,109],{},"To guide selection or prepare a quote, ESGRAF typically needs:",[42,111,112,115,118,121,124],{},[45,113,114],{},"Application and operating conditions (temperature, atmosphere, load).",[45,116,117],{},"Dimensions, technical drawing, or CAD file when applicable.",[45,119,120],{},"Required quantity.",[45,122,123],{},"Requested grade or material currently in use.",[45,125,126],{},"Observed issue with the previous part or lubricant, if any.",[24,128,130],{"id":129},"request-a-quote","Request a quote",[17,132,133,134,137,138,141],{},"Share these details with our team at ",[82,135,85],{"href":136},"\u002F"," or ",[82,139,140],{"href":89},"request information",". A specialist will review your application before recommending a grade or geometry.",{"title":143,"searchDepth":144,"depth":144,"links":145},"",2,[146,147,148,149,150,151],{"id":26,"depth":144,"text":27},{"id":36,"depth":144,"text":37},{"id":73,"depth":144,"text":74},{"id":98,"depth":144,"text":99},{"id":105,"depth":144,"text":106},{"id":129,"depth":144,"text":130},"Use cases","translation","2020-03-03","Carbon felts are structures or fibers of carbon, or carbonized or graphitized material, which are used as a means of insulation in induction or vacuum resistance furnaces.","md","\u002Fassets\u002Fblog\u002Fcarbon-graphite-felts.webp","2026-07-22",{},true,null,"\u002Fblog\u002Ffieltro-de-carbon",{"title":5,"description":155},"blog\u002Fcarbon-graphite-felts","iiIVUGIS1veazWBjUTVcN4M8eAc4BTsACl2podvYQ2w",[167,173,179],{"path":168,"title":169,"description":170,"image":171,"date":172,"category":152},"\u002Fblog\u002Fspheroidal-graphite-cast-iron","Spheroidal graphite cast iron - in which industries is it needed?","Cast irons are a group of ferrous alloys that have a large number of properties and have above 2% carbon. In these cases the carbon does not dissolve completely in the iron and solidifies in the form of graphite or iron carbide. One of the types is spheroidal graphite cast iron or nodular cast iron.","\u002Fassets\u002Fblog\u002Fspheroidal-graphite-cast-iron.webp","2020-12-22",{"path":174,"title":175,"description":176,"image":177,"date":178,"category":152},"\u002Fblog\u002Fbenefits-graphite-dielectric-properties","Anisotropic conductivity of graphite: conductor and insulator by direction","Graphite is not a uniform dielectric: it conducts well in the basal plane and behaves like an insulator perpendicular to the layers. That anisotropy explains its role in EDM, brushes, and thermal components.","\u002Fassets\u002Fblog\u002Fbenefits-graphite-dielectric-properties.webp","2020-12-15",{"path":180,"title":181,"description":182,"image":183,"date":184,"category":152},"\u002Fblog\u002Fcrystalline-graphite-flake","Crystalline flake graphite: utilization and impact in the industry","Graphite is a mineral that can be obtained naturally but also artificially. artificially. It is one of the most stable allotropic forms of carbon and has a wide range of industrial uses. It is one of the most stable allotropic forms of carbon and has a wide range of applications due to its characteristics.","\u002Fassets\u002Fblog\u002Fcrystalline-graphite-flake.webp","2020-12-10",1785448976737]