Starrett 55071 Low Carbon Steel Flat Stock C1018

Product Description

The STARRETT 55071 is a low carbon steel flat stock bar made to AISI Type C1018 material specification. It measures 1.5 inches thick, 4 inches wide, and 24 inches long, and weighs 40.8 pounds. C1018 is a general-purpose low carbon steel known for consistent machinability, weldability, and moderate strength, making it a practical choice for fabrication, repair, and tooling applications. Tight tolerances are held across all three dimensions: plus or minus 0.001 inch on thickness and squareness, plus 0.000 to 0.005 inch on width, and plus 0.625 inch on length. Licensed machinists, millwrights, and fabricators rely on this stock for layout work, fixture building, and structural component fabrication.

This flat stock is suited for machine shops, maintenance and repair operations, and light structural fabrication. The C1018 grade responds well to turning, milling, drilling, and welding without requiring special tooling or preheat procedures under most shop conditions. The 24-inch length and 4-inch width give fabricators a workable blank for a wide range of cut-to-size applications. The 1.5-inch thickness provides enough cross-section for load-bearing brackets, spacers, and mounting plates.

Key Features

• AISI Type C1018 low carbon steel for reliable machinability and weldability
• Thickness and squareness tolerance of plus or minus 0.001 inch for precision fitment
• Width tolerance of plus 0.000 to 0.005 inch ensures consistent width at or above nominal
• Length tolerance of plus 0.625 inch provides extra material for face-trimming to final length
• 40.8 pound piece weight suitable for bench and fixture work
• Ships as a single piece with a minimum order quantity of 1

Compatibility

Designed as a general-purpose low carbon steel flat bar for machining, fabrication, and maintenance applications where AISI C1018 material specification is required.

Installation Notes

Cutting, drilling, and welding of C1018 steel flat stock should be performed by qualified machinists or fabricators following applicable shop safety procedures. Secure the workpiece in a vise or fixture before machining to prevent movement. Use appropriate personal protective equipment including eye protection and gloves when cutting or grinding. Verify final dimensions against print tolerances after any facing or trimming operations.