Starrett 54724 A2 Tool Steel Flat Stock 5/16x4x18 Inch

Product Description

The STARRETT 54724 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die work, and precision machining applications. Measuring 0.3125 inches thick, 4 inches wide, and 18 inches long, this bar ships in annealed condition ready for machining before heat treatment. A2 tool steel offers good dimensional stability during air hardening, making it a preferred choice for punches, dies, gauges, and similar toolroom components. Machinists, tool and die makers, and industrial maintenance professionals work with this material. At 6.41 pounds, it is a solid, workable piece suited for bench or machine shop use.

This flat stock is appropriate for both prototype and production tooling applications where consistent cross-section and tight dimensional tolerances are required. The 18-inch length provides enough material for moderate-size tool or die components without requiring additional cutoff before rough machining. It is commonly used in industrial shops, toolrooms, and maintenance environments where A2 tool steel is a specified material grade.

Key Features

• AISI A2 air-hardening tool steel for good dimensional stability during heat treat
• Thickness tolerance of plus or minus 0.001 inches for consistent stock removal calculations
• 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
• Ships annealed for full machinability prior to hardening

Compatibility

Designed as a standard A2 tool steel flat bar suitable for use in toolroom, die shop, and precision machining applications where AISI A2 material specification is required.

Installation Notes

This material is machined and fabricated by qualified tool and die makers or machinists using conventional milling, turning, and grinding equipment. Heat treatment should be performed by a qualified heat treating facility following AISI A2 hardening and tempering parameters. Always allow adequate stock for finish grinding after hardening to account for any movement during heat treat. Follow applicable shop safety practices when cutting, grinding, or handling tool steel bar stock.