Alloy Steel

AISI 4330V is a nickel chromium molybdenum vanadium alloy steel specification widely used in the oil and gas sectors. AISI 4330V is a modification of the 4330 alloy steel grade, with hardenability and other characteristics improved by the addition of vanadium. The addition of vanadium and nickel to 4330V alloy steel helps it achieve high strength and hardness in larger diameters in comparison to similar grades such as AISI 4145. With its lower carbon content it has better welding characteristics than AISI 4145. AISI 4330V is commonly supplied quenched and tempered with a hardness of between 35 to 39HRc.