

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The STARRETT 55056 is a low carbon steel flat bar stock made to AISI Type C1018 specification. It measures 24 inches in length, 1-1/2 inches in width, and 1-1/4 inches in thickness, with a weight of 12.76 pounds. C1018 is a standard low carbon steel grade recognized for consistent machinability, weldability, and mild formability. Tolerances are tightly held: length is held to a plus 0.625 inch tolerance, width to plus 0.000 to 0.005 inches, and both thickness and squareness to plus or minus 0.001 inch. This stock is suited for fabrication shops, maintenance trades, and industrial applications where close-tolerance flat bar is required.
This flat stock is used across a range of trade and industrial fabrication applications including HVAC equipment framing, mechanical supports, electrical enclosure components, plumbing hanger fabrication, and general structural or repair work. Its low carbon content makes it easy to weld, drill, tap, and machine without specialized tooling. The controlled width and thickness tolerances make it practical for applications where dimensional consistency matters across multiple pieces cut from the same bar.
Designed as a general-purpose flat bar stock suitable for fabrication, repair, and structural support applications in trade and industrial environments where AISI C1018 low carbon steel flat bar is specified.
Cutting, drilling, or welding this flat stock should be performed by qualified tradespeople using appropriate personal protective equipment and tools rated for steel. Deburr all cut edges before handling or installation in assemblies. When welding, follow applicable AWS guidelines for low carbon steel. Consult local building or mechanical codes before incorporating structural steel components into load-bearing assemblies.
Thanks for subscribing!
This email has been registered!