Starrett 57325 A2 Tool Steel Flat Stock 5/32x1/2x36 in

Product Description

The STARRETT 57325 is an A2 air-hardening tool steel flat stock bar sized at 5/32 inches thick, 1/2 inch wide, and 36 inches long. A2 tool steel is a versatile, oil-free air-hardening grade known for its dimensional stability during heat treatment and good wear resistance, making it a standard choice for dies, punches, gauges, and precision tooling components. This bar ships in a ground, precision-tolerance condition with a thickness tolerance of plus or minus 0.001 inch, a width tolerance of plus 0.000 to 0.005 inch, a length tolerance of plus 0.25 inch, and a squareness tolerance of plus or minus 0.001 inch. Machinists, tool-and-die makers, and maintenance technicians working with precision tooling stock will find this bar ready for layout, machining, and subsequent heat treat operations.

This flat stock is suited for fabrication of cutting tools, fixture components, jigs, mold components, and wear parts in both job-shop and production tooling environments. The 36-inch length allows multiple blanks to be cut from a single bar, reducing material waste on small-run tooling projects. The ground finish and tight tolerances minimize pre-machining stock removal. This bar is appropriate wherever A2 grade is specified by design or where an air-hardening steel is preferred over oil-hardening grades for reduced distortion risk during hardening.

Key Features

• AISI A2 air-hardening tool steel grade for stable, low-distortion heat treatment
• Thickness tolerance of plus or minus 0.001 inch for precise fit in tooling applications
• Width tolerance of plus 0.000 to 0.005 inch
• Squareness tolerance of plus or minus 0.001 inch with edge squareness of 0.003 per inch
• 36-inch bar length with a plus 0.25 inch length tolerance
• Ground flat stock condition minimizes pre-machining setup time

Compatibility

Designed as a standard A2 air-hardening tool steel flat bar suitable for use in die-making, punch fabrication, gauging, and general precision tooling applications where AISI A2 material specification is required.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or tool-and-die makers using appropriate tooling for hardened or semi-hardened steel as applicable. When heat treating A2 tool steel, follow the material manufacturer's published hardening and tempering guidelines and use proper personal protective equipment. Allow the bar to reach ambient temperature before precision measurement after any grinding or thermal operation. Deburr all edges after cutting to prevent handling injury and to ensure accurate fixturing.