How High - quality Foundry Coke Saves Costs: “Buy High, Use Low”
Lower Burn Ratio: High - quality cast coke, with high fixed - carbon (>86%) and heat, needs less for same molten - iron output. Regular coke's 1:8 focal ratio vs high - quality's 1:10. Despite higher unit price, 15 - 20% less use cuts per - ton molten - iron coke cost.
Boost Scrap - Steel Use: High - stable combustion temp of high - quality coke allows 1 - 2% more scrap steel added per 10℃ rise in molten - iron temp. Pig - iron/scrap - steel price gap saves raw - material costs.
Reduce Chemical Costs: Low - sulfur (<0.6%) high - quality coke cuts desulfurizer use and, for ductile - iron, spheroidizing agent addition, saving big.
Drop Scrap Rate: Good - strength high - quality coke (high M40, low M10) keeps furnace breathable. Stable furnace cuts scrap, more profitable than big coke - price drop.
Extend Furnace - Lining Life: Low - ash (<10%) high - quality coke means less slag, less furnace - lining erosion. Longer repair cycle, lower refractory and maintenance costs.
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