Hard Usa Coal, Color : Black 0-50 Mm for Industrial

USA steam coal specifications vary by supplier but typically focus on calorific value (6,000-7,300 kcal/kg or higher), moisture content (5-10%), ash content (under 12%), sulfur content (often below 1%), and volatile matter (35-40%). Key specifications include Gross Calorific Value (GCV) and Net Calorific Value (NCV), alongside fixed carbon and Hardgrove Grindability Index (HGI), with packaging usually being in loose form.