Starrett 55055 Low Carbon Steel Flat Stock 24x1-1/4x1-1/4

Product Description

The STARRETT 55055 is a low carbon steel flat stock bar cut to 24 x 1-1/4 x 1-1/4 inches and produced to AISI Type C1018 material specification. C1018 is a general-purpose mild steel known for consistent machinability, good weldability, and reliable surface finish response — making it a standard choice for fabrication shops, maintenance operations, and trade applications that require predictable material behavior. The bar ships at 10.62 pounds. Dimensional 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 squareness tolerances hold to plus or minus 0.001 inches.

This flat stock is suited for use in general metalworking, light structural fabrication, custom bracket and frame work, and maintenance repair operations across industrial, commercial, and trade settings. Machinists, welders, pipefitters, and maintenance technicians commonly work with C1018 bar stock when building supports, guides, wear plates, or custom hardware. The square cross-section profile and tight tolerances make it ready for layout and machining with minimal prep stock removal.

Key Features

• AISI Type C1018 low carbon steel — consistent chemistry for predictable machining and welding
• 24-inch length with plus 0.625-inch length tolerance for cut-to-size flexibility
• Width tolerance held to plus 0.000 to 0.005 inches for close-fit applications
• Thickness and squareness tolerance of plus or minus 0.001 inches
• Square cross-section profile: 1-1/4 x 1-1/4 inches
• Ships as a single piece at 10.62 pounds

Compatibility

Designed as a general-purpose C1018 low carbon steel flat stock bar suitable for fabrication, machining, and maintenance repair applications where mild steel material is specified.

Installation Notes

Handle with appropriate personal protective equipment — freshly cut or machined steel edges are sharp. Secure the workpiece properly in a vise or fixture before cutting, drilling, or welding. Follow applicable shop safety and OSHA general industry standards for metalworking operations. Store flat stock horizontally on a level surface or in a designated rack to prevent bowing or distortion.