MY ACCOUNT ONLINE CHAT CLEARANCE Alloys Forms Processing Quality Approvals Technical Resources 440C Stainless 440C is a high-carbon martensitic stainless steel. As a martensitic stainless steel, 440C is magnetic and can be hardened by heat treatment. The high carbon content in 440C provides high hardness and strength. Despite this carbon content, the chromium content is sufficient to retain its stainless characteristics. Martensitic steels are commonly used in applications where high strength and moderate corrosion resistance is required. Inventory 440C Round Bar Specifications AMS 5630, AMS 5880, ASTM A 276, UNS S44004, W. Nr./EN 1.4125 Features Attains the highest hardness of any stainless steel, when heat-treated Highest carbon content of 400 series stainless steels Applications Valve Seats Surgical Instruments Bearings Bushings Nozzles Structural Aircraft Parts Related Literature Data Sheet OUR COMPANY About Us FAQs Markets Careers & Internships Packaging Safety Contact LOCATIONS North America Asia Europe TOOLS & MEDIA E-Service Programs Videos Weld Wire Selection Pipe Size Chart Machining Information Current Promotions RA Mobile FOLLOW US INSTAGRAM LINKEDIN FACEBOOK YOUTUBE PAYMENT METHOD BY United States P.O. Terms Terms & Conditions Privacy Policy © Rolled Alloys, Inc. All Rights Reserved