Starrett 55072 Low Carbon Steel Flat Stock Aisi C1018

Product Description

The STARRETT 55072 is a low carbon steel flat stock bar machined to close tolerances and intended for use in fabrication, toolmaking, and general metalworking applications. Manufactured to AISI Type C1018 specification, this flat bar measures 24 inches long, 5 inches wide, and 1.5 inches thick. The piece weighs 51 pounds and is suited for structural fixtures, weld-up assemblies, machine bases, and precision layout work where tight dimensional control is required. Thickness and square tolerances are held to plus or minus 0.001 inches, giving fabricators and machinists a reliable starting point without additional surface grinding.

This flat stock is appropriate for job-shop fabrication, industrial maintenance, and toolroom use. It suits applications where moderate strength and good machinability are priorities, which are characteristic properties of C1018 low carbon steel. Typical uses include mounting plates, keyways, brackets, and support structures in both light and heavy manufacturing environments. The bar ships as a single piece and is sized to allow direct use or further cutting to final dimensions on the shop floor.

Key Features

• AISI C1018 low carbon steel for consistent machinability and weldability
• Thickness tolerance of plus or minus 0.001 inches for precise fitment
• Width tolerance of plus 0.000 to 0.005 inches
• Length tolerance of plus 0.625 inches
• Square tolerance of plus or minus 0.001 inches
• Single-piece package ready for direct fab or further processing

Compatibility

Designed as a general-purpose low carbon steel flat bar for fabrication, toolroom, and industrial maintenance applications requiring AISI C1018 material specification.

Installation Notes

Handling of 51-pound steel bar stock requires appropriate lifting equipment or two-person carry to prevent injury. Cutting, drilling, or welding should be performed with tooling rated for low carbon steel and in compliance with applicable shop safety standards. Secure the workpiece firmly in a vise or fixture before machining operations. Wear appropriate PPE including eye protection and gloves when cutting or grinding.