Ascometal is also involved in the main applications of the oil/gas and mining industries including steels for Drill Collars, Tool joints, Heavy Weight Drill Pipes for the BHA (Bottom Hole Assembly) such as the jar, stabiliser, packer, reamer and mandrel tooling, the hammer and piston for rock breakers. Special steels are developed for all the drilling and mining material such as high chrome grades like AISI 410, AISI 420; ASCOWELL and ASCOROC for their corrosion, toughness, high toughness and high strength properties. The key characteristics of these steel grades are their fatigue and corrosion strength, macro cleanness and improved toughness.