Starrett 54709 A2 Tool Steel Flat Stock 1x5x36 in

Product Description

The STARRETT 54709 is an A2 air-hardening tool steel flat stock bar measuring 1 inch thick, 5 inches wide, and 36 inches long. A2 tool steel offers excellent dimensional stability during heat treatment, making it a preferred choice for dies, punches, gauges, and precision tooling components. This flat stock ships in the annealed condition, ready for machining before hardening. It is held to tight tolerances: plus or minus 0.001 inches on thickness and squareness, plus 0.000 to 0.005 inches on width, and plus 0.25 inches on length. The piece weighs approximately 58.64 pounds. Machinists, tool and die makers, and toolroom personnel are the primary users of this material.

A2 air-hardening flat stock in this size is suited for medium to large tooling applications where close dimensional control and minimal distortion after hardening are required. Typical applications include blanking dies, forming dies, trim dies, cutting tools, and precision fixture components. The 1-inch thickness provides substantial cross-section for applications requiring deep machining, pocketing, or through-hole work. This bar is appropriate for job shops, tool rooms, and production environments fabricating long-run tooling that demands consistent hardness and wear resistance.

Key Features

• AISI A2 air-hardening tool steel for minimal distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inches for precision fitment
• Width tolerance of plus 0.000 to 0.005 inches
• Squareness held to 0.003 inches per inch on all edges
• Length tolerance of plus 0.25 inches
• Supplied in annealed condition, ready for machining prior to hardening

Compatibility

Designed as a standard A2 tool steel flat stock suitable for general tooling, die-making, and precision machining applications requiring air-hardening steel in a 1 inch by 5 inch cross-section.

Installation Notes

Material should be machined in the annealed condition before heat treatment. Heat treating A2 tool steel to final hardness should be performed by a qualified heat treater following established metallurgical procedures for AISI A2. Always allow the bar to reach a stable temperature before precision machining operations. Secure the workpiece properly using appropriate fixturing to prevent movement during cutting.