Starrett 55021 Low Carbon Steel Flat Stock 24x2x0.75in

Product Description

The STARRETT 55021 is a low carbon steel flat bar stock machined to AISI Type C1018 specifications, a widely used cold-drawn steel grade valued for its consistent machinability, weldability, and surface finish. This flat stock measures 24 inches in length, 2 inches in width, and 0.75 inches in thickness, and weighs approximately 10.2 pounds. Tolerances are tightly controlled: length tolerance is plus 0.625 inches, width tolerance is plus 0.000 to 0.005 inches, and both thickness and square tolerance hold at plus or minus 0.001 inches. Machinists, fabricators, and toolroom technicians use this material for fixtures, brackets, wear plates, and general structural components.

This flat stock is suited for a broad range of light industrial and toolroom fabrication applications. Its C1018 low carbon chemistry makes it a practical choice where moderate strength and good formability are required without the added cost of alloy grades. Typical use cases include machine bases, mounting plates, spacers, and custom-fabricated parts in both job shop and maintenance environments. The controlled width and thickness tolerances reduce secondary grinding or finishing operations for close-fit applications.

Key Features

• AISI Type C1018 low carbon steel for consistent machinability and weldability
• Thickness and square tolerance held to plus or minus 0.001 inches for precision fitment
• Width tolerance of plus 0.000 to 0.005 inches supports close-tolerance fabrication
• Length tolerance of plus 0.625 inches provides material for finish-cut operations
• Cold-drawn surface finish reduces need for additional stock removal in many applications

Compatibility

Designed as a general-purpose low carbon steel flat stock suitable for toolroom, fabrication, and light structural applications where AISI C1018 material specification is required.

Installation Notes

Cutting, drilling, and machining should be performed by qualified machinists or fabricators using appropriate tooling for low carbon steel. Deburr all cut edges before handling or assembly. When welding, follow standard procedures for low carbon steel and allow adequate cooling to avoid warping. Verify final dimensions after any secondary operations to confirm they meet project tolerances.