Coal
Coal
COAL
Coal is a combustible sedimentary rock formed from ancient plant material, primarily carbon with varying amounts of hydrogen, sulfur, oxygen, and nitrogen. It remains a major global energy source and industrial feedstock for power generation, steel manufacturing, cement, chemicals, and heat-intensive processes.
Specification-driven supply with QA/QC, certification & logistics
Hamsavahin Aarth Mines sources and delivers consistent grades (lumps/fines), documentation, and on-time schedules.
TYPES OF COAL
< 60% carbon • Very high moisture
Precursor stage of coal formation; limited energy use.
60–70% carbon • High moisture, low energy
Used for nearby power generation where transport distances are short.
70–76% carbon • Moderate moisture
Common for electricity generation with balanced heating value.
76–90% carbon • Lower moisture
High heating value; used widely in power and industry. Coking grades feed steel blast furnaces.
90%+ carbon • Very low volatiles
Hard, shiny coal used for metallurgical and premium heating applications.
USES OF COAL
Primary fuel for electricity in thermal power plants.
Produces coke for blast furnaces to reduce iron ore.
Rotary kiln heat source for clinker production.
Furnaces, boilers, and kilns across heavy industry.
Feedstock for synthetic fuels and alumina-based chemicals.
Cooking and heating in select regions.
GRADES OF COAL
Grade A
GCV ≥ 6200 kcal/kg • Metallurgical & industrial use.
Grade B
5600–6200 kcal/kg • Power generation & industry.
Grade C
4940–5600 kcal/kg • Power generation.
Grade D
4200–4940 kcal/kg • Thermal power.
Grade E
3360–4200 kcal/kg • Brick kilns & local industries.
Grade F
2400–3360 kcal/kg • Low-grade thermal use.
Grade G
< 2400 kcal/kg • Domestic / low-heat applications.