Our 300mm diameter Round Billet is manufactured from high-quality 40Cr alloy steel (equivalent to ASTM 5140), offering exceptional strength, toughness, and wear resistance for the most demanding industrial applications. This large-diameter billet combines chromium alloy enhancement with precise manufacturing processes to deliver superior mechanical properties. The 40Cr grade provides excellent hardenability and fatigue resistance, making it ideal for critical components in automotive, aerospace, and heavy equipment industries where reliability and performance are paramount.