Starrett 57510 A2 Tool Steel Flat Stock 0.125x8x18 in

Product Description

The STARRETT 57510 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.125 inches thick, 8 inches wide, and 18 inches long, this flat stock is manufactured to tight tolerances: thickness held to plus or minus 0.001 inches, width held to plus 0.000 to 0.005 inches, and length held to plus 0.250 inches. The square tolerance is also plus or minus 0.001 inches. A2 tool steel offers good wear resistance and dimensional stability through the air-hardening process, making it a reliable choice for precision tool and die work.

This flat stock is suited for machine shops, tool and die shops, and maintenance departments where consistent stock dimensions are required before heat treatment. A2 material is commonly selected for blanking dies, forming dies, punches, and gauges where moderate toughness and good hardness are needed. It is typically supplied in the annealed condition, ready for machining prior to air hardening. The 8-inch width and 18-inch length provide enough material for most single-piece tooling or small-batch fabrication work.

Key Features

• AISI A2 air-hardening tool steel construction for predictable heat treat response
• Thickness tolerance of plus or minus 0.001 inches for precision fitment
• Width tolerance of plus 0.000 to 0.005 inches
• Square tolerance of plus or minus 0.001 inches
• Length tolerance of plus 0.250 inches
• Supplied in flat stock form, ready for machining and subsequent air hardening

Compatibility

Designed as a standard A2 tool steel flat stock for toolmaking, die making, and precision machining applications requiring air-hardening material to AISI A2 specification.

Installation Notes

Machining and heat treatment of tool steel flat stock is performed by qualified machinists and tool and die makers. Material should be machined in the annealed condition prior to air hardening. Follow the steel manufacturer's recommended heat treat cycle for A2 tool steel, including proper soak temperatures and controlled cooling, to achieve target hardness. All cutting, grinding, and EDM operations should be completed before the hardening cycle to minimize distortion.