Starrett 57323 A2 Tool Steel Flat Stock 0.125x10x36 in

Product Description

The STARRETT 57323 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, die makers, and machinists who require tight-tolerance raw material for cutting tools, punches, dies, and precision fixtures. It measures 0.125 inches thick, 10 inches wide, and 36 inches long, and weighs 14.66 pounds. The stock is produced to AISI A2 specification, a cold-work tool steel known for its dimensional stability during heat treatment and its balance of wear resistance and toughness. Thickness tolerance is held to plus or minus 0.001 inches, making this suitable for applications where close finished dimensions are critical from the start of machining.

This flat stock is used in tool and die shops, maintenance and repair operations, and precision manufacturing environments. It is a common starting material for blanking dies, form tools, gauges, and similar hardened-steel components. The 10-inch width and 36-inch length provide substantial material for larger tooling blanks or multiple smaller pieces cut from a single bar. It is typically handled by tool and die makers or skilled machinists working in job shops or in-house toolrooms.

Key Features

• AISI A2 air-hardening tool steel for consistent dimensional stability during heat treat
• Thickness tolerance of plus or minus 0.001 inches for tight as-received fitment
• Width tolerance of plus 0.000 to 0.015 inches
• Length tolerance of plus 0.25 inches
• Squareness held to 0.003 inches per inch on all edges
• Square tolerance of plus or minus 0.001 inches

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat stock suitable for general tool and die, punch, gauge, and fixture fabrication applications requiring cold-work tool steel raw material.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or tool and die makers using appropriate coolant and tooling rated for hardened or pre-hardened steel. Heat treatment of A2 tool steel should follow established AISI guidelines for austenitizing temperature, quench method, and tempering cycles. Always wear appropriate personal protective equipment when cutting or grinding tool steel. Verify final dimensions after any thermal processing, as some dimensional change may occur.