Starrett 54991 Low Carbon Steel Flat Stock 24x3.5x0.5 in

Product Description

The STARRETT 54991 is a low carbon steel flat stock bar cut to 24 inches in length, 3.5 inches in width, and 0.5 inches in thickness, conforming to AISI Type C1018 material specification. C1018 is a general-purpose mild steel valued for its consistent machinability, weldability, and moderate strength, making it a go-to stock material for fabrication shops, maintenance departments, and trade professionals who need reliable raw bar stock for custom parts, brackets, shims, and structural components. At 11.9 pounds per piece, this flat bar delivers solid mass for demanding shop and field applications.

This flat stock is suited for a wide range of fabrication and maintenance tasks in commercial, industrial, and trade settings. Common applications include machining custom brackets, cutting shim stock, welding structural supports, and general metalworking where tight dimensional tolerances are required. The C1018 specification makes it compatible with MIG, TIG, and oxy-fuel welding processes and accepts standard threading, drilling, and milling operations without special tooling.

Key Features

• AISI Type C1018 low carbon steel for consistent machinability and weldability
• Thickness tolerance of plus or minus 0.001 inches for precision fit-up
• Width tolerance of plus 0.000 to plus 0.005 inches
• Length tolerance of plus 0.625 inches from nominal 24-inch length
• Square tolerance of plus or minus 0.001 inches
• Ready-to-use flat bar format — no additional forming required

Compatibility

Designed as a standard AISI C1018 low carbon steel flat stock for general fabrication, machining, and structural applications across industrial and trade environments.

Installation Notes

Cutting, drilling, and welding of C1018 steel flat stock should be performed by qualified metalworkers or trade professionals using appropriate PPE including eye protection and gloves. Deburr all cut edges before handling or fitting parts into assemblies. When welding, follow applicable AWS standards for low carbon steel. Store flat stock horizontally on suitable racking to prevent bowing or warping.