Starrett 54645 A2 Tool Steel Flat Stock 3/8x1-1/2x36 in

Product Description

The STARRETT 54645 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.375 inches thick, 1.5 inches wide, and 36 inches long, this bar is manufactured to tight dimensional tolerances, including a thickness tolerance of plus or minus 0.001 inches and a width tolerance of plus 0.000 to 0.005 inches. AISI Type A2 tool steel offers good wear resistance, dimensional stability during heat treatment, and moderate toughness, making it a reliable choice for punches, dies, gauges, and similar tooling components. The bar ships at approximately 6.6 pounds.

This flat stock is suited for machine shops, tool and die shops, and industrial maintenance operations requiring precision-ground or precision-toleranced stock ready for layout and machining. The 36-inch length provides a practical starting point for cutting multiple blanks. Machinists and tool and die makers typically use this material for fabricating custom tooling, jigs, fixtures, and wear plates where air-hardening steel properties are specified.

Key Features

• AISI Type A2 air-hardening tool steel for dimensional stability during heat treat
• 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 0.25 inches
• Squareness: edge all 0.003 inches per inch
• Ready-to-machine flat stock at 0.375 inches thick by 1.5 inches wide by 36 inches long

Compatibility

Designed as a general-purpose A2 air-hardening tool steel flat stock for use in toolmaking, die making, and precision machining applications where AISI A2 material specification is required.

Installation Notes

Cutting, grinding, and heat treatment of tool steel should be performed by qualified machinists or tool and die makers using appropriate equipment and safety practices. Follow the material manufacturer and shop safety guidelines when annealing, hardening, or tempering A2 tool steel, as improper heat treatment can result in cracking or distortion. Always wear appropriate PPE when machining or grinding tool steel. Consult applicable shop standards and material data sheets before processing.