Oil & Gas steel specifications, stockholders and suppliers delivering to the whole of the Middle East.Nifty Alloys LLC are suppliers of oil and gas steel grades in round bar. These grades are used for a wide variety of applications in the offshore industries. Oil and gas alloy steel grades are commonly supplied quenched and tempered with varying mechanical properties and differing Rockwell hardnesses. The characteristics of these steel grades include tensile strength, yield strength, fatigue resistance, toughness and wear resistance. Oil & gas specifications are commonly supplied to AISI (American Iron & Steel Institute) and SAE standards.