Must-know: The US coal mining areas and coal specifications
Coal mined from Powder River Basin is low in energy content—8,000-9,500 BTU/lb. However, it enjoys low sulfur of 0.2% to 0.9%. The Rocky Mountain coal has energy content of 10,000-12,200 BTU/lb,Coal Grades | Ministry of Coal, Government of India,The gradation of non-coking coal is based on Gross Calorific Value (GCV), the gradation of coking coal is based on ash content and for semi coking /weakly coking coal it is based on ash plus moisture content, as in vogue as per notification.specifications of coal, specifications of coal Suppliers,,1,135 specifications of coal products are offered for sale by suppliers on Alibaba, of which conveyors accounts for 4%, boilers accounts for 4%, and mining machinery parts accounts for 1%. A wide variety of specifications of coal options are available to you, such as hard wood.