Starrett 54763 A2 Tool Steel Flat Stock 0.625x3.5x18 in

Product Description

The STARRETT 54763 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die-making, and precision machining applications. It measures 0.625 inches thick, 3.5 inches wide, and 18 inches long, and weighs 11.15 pounds. A2 tool steel offers a balance of toughness and wear resistance, making it well suited for punches, dies, gauges, and cutting tools that require air hardening after machining. The tight tolerances held on this stock — plus or minus 0.001 inches on thickness and squareness — reduce the amount of finish grinding required before heat treat. Machinists and toolroom technicians are the primary users of this material.

This flat stock is intended for toolroom and industrial fabrication environments where A2 air-hardening steel is specified. Typical applications include blanking dies, forming dies, punches, and precision gauging components. Because A2 hardens in still air rather than oil or water quench, it produces minimal distortion after heat treatment, which makes it a preferred choice when maintaining dimensional stability through the hardening process is critical. This bar is supplied in the annealed condition, ready for machining prior to heat treatment.

Key Features

• AISI A2 air-hardening tool steel — minimal distortion during heat treatment
• Supplied in annealed condition for machining prior to hardening
• Thickness tolerance of plus or minus 0.001 inches for precision fitment
• Width tolerance of plus 0.000 to 0.005 inches
• Length tolerance of plus 0.250 inches
• Square tolerance of plus or minus 0.001 inches

Compatibility

Designed as a standard A2 tool steel flat bar for toolroom and die-making applications requiring air-hardening material in annealed flat stock form.

Installation Notes

This material is worked by qualified machinists and toolroom technicians using conventional metal-cutting equipment. All machining should be completed in the annealed state before heat treatment is performed. Heat treating A2 tool steel to final hardness should be carried out by a qualified heat treat shop following the material manufacturer's recommended austenitizing temperature and soak time. Handle with care after hardening, as hardened tool steel is brittle and susceptible to edge chipping if dropped or struck.