{"id":1454,"date":"2026-05-30T20:58:08","date_gmt":"2026-05-30T17:58:08","guid":{"rendered":"https:\/\/cfc.codev-eg.com\/?page_id=1454"},"modified":"2026-06-01T01:44:23","modified_gmt":"2026-05-31T22:44:23","slug":"carbon-additives","status":"publish","type":"page","link":"https:\/\/cfc.codev-eg.com\/fr\/products\/trading-division\/carbon-additives\/","title":{"rendered":"Additifs de carbone"},"content":{"rendered":"\t\t
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Division 03 \u2014 Trading Division \u2014 Carbon Additives<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Carbon Additives\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Carbon additives \u2014 also called recarburisers or carburisers \u2014 are carbonaceous materials added to iron and steel melts to raise the carbon content to the specified level. They are used in induction furnace foundries and electric arc steelmakers where the charge material does not supply sufficient carbon, and where precise carbon control is essential to meeting the target grade specification.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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CFC Egypt's Trading Division sources and supplies carbon raisers and amorphous graphite for grey iron, ductile iron, and steel operations. The key properties of a carbon additive are fixed-carbon content, sulfur level, ash content, and particle size \u2014 all of which influence the speed of dissolution and the impact on melt chemistry. We supply materials with traceable specifications to support quality-conscious foundries that need reliable, repeatable carbon control heat after heat.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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What We Supply\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Two principal carbon additive groups for raising carbon in iron and steel melts \u2014 petroleum coke-based recarburisers and natural amorphous graphite.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Carbon Raiser (Recarburiser)\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Petroleum coke-based recarburisers with high fixed carbon (95\u201399%), low sulfur, and controlled particle size for rapid, predictable dissolution in induction furnace iron melts and electric arc furnace steel melts. Used to bring charge carbon to specification when scrap or returns charge is below the target carbon equivalent.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Amorphous Graphite\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Natural microcrystalline (amorphous) graphite with 70\u201385% fixed carbon. A cost-effective carbon source for grey iron foundries, suitable as a recarburiser where slightly higher ash levels are acceptable, and also used as a graphitic mould wash additive for its dry lubricating properties and thermal stability at casting temperatures.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Where Carbon Additives Are Used\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Carbon additives are used wherever iron or steel melts are produced and the carbon content of the charge falls below the target specification \u2014 which is routine in induction-furnace foundries using scrap charge.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Induction Furnace Grey Iron\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Grey iron foundries melting with steel scrap or internal returns regularly use recarburisers to bring the carbon equivalent to the target range of 3.8\u20134.3% CE. The recarburiser is charged with the scrap or added to the melt once the charge is molten, and its dissolution is confirmed by spectrometric analysis before tapping.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Ductile Iron Production\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Ductile iron requires a higher carbon equivalent (typically 4.2\u20134.6%) for reliable nodularity and to compensate for carbon losses during magnesium treatment. A low-sulfur carbon raiser \u2014 typically calcined petroleum coke with <0.5% S \u2014 is the preferred recarburiser to avoid raising the sulfur load that would require additional desulfurisation before nodularisation.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Electric Arc Furnace Steel\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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EAF steelmakers use recarburisers as carbon injection material to maintain foamy slag and as ladle additions to trim carbon content after tapping. The carbon addition rate and timing relative to alloying additions are carefully controlled to hit the target carbon specification without overshooting and requiring dilution.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Cast Iron & General Foundry\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Jobbing foundries producing a range of grey and ductile iron grades benefit from consistent carbon additives that dissolve predictably and allow fast, accurate charge corrections. Amorphous graphite offers a lower-cost option for grey iron grades where slightly elevated ash content from the graphite does not affect casting quality.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Carbon Additive Products\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Carbon raisers and amorphous graphite sourced and supplied by CFC Egypt's Trading Division for iron and steel foundries.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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