AISI 6150, designated 51CrV4 (Material No. 1.8159) under EN 10089 and 50CrV4 under DIN, is a medium-carbon chromium-vanadium alloy steel purpose-built for spring applications requiring high fatigue strength, deep hardenability, and resistance to shock loading. The vanadium addition refines grain structure and improves toughness at high hardness levels, distinguishing 6150 from plain chrome-carbon spring steels such as 5160.

Nifty Alloys LLC supplies certified 6150 / 51CrV4 round bar and flat bar from stock in Dubai, UAE, with full EN 10204 3.1 Mill Test Certificates confirming chemical composition and mechanical properties. Material is available in annealed, normalised, or hardened-and-tempered condition to suit spring manufacturing, forging, and machining requirements across the GCC and international markets.

As a specialist stockist rather than a manufacturer, we maintain ready inventory across standard section sizes and source non-stock diameters through established international mill relationships, ensuring consistent lead times on both production-volume and project-specific orders.